Click on a name in either list to access the Atlas page for that species.
Note that an Atlas page may not be available for every species.
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The order of each list is independent of (not related to) that of the other.

Algae Fungi Lichens Liverworts Mosses Slime Mold Vascular plants

Select by English Common Name	Select by Scientific Name
Aaron's beard abbreviated bluegrass absinthe absinthium Aegean wallflower Alaska alkaligrass Alaska bellheather Alaska bentgrass Alaska blueberry Alaska blue-eyed grass Alaska bluegrass Alaska brome Alaska brownish sedge Alaska cinquefoil Alaska club-moss Alaska curved woodrush Alaska dandelion Alaska draba Alaska holly fern Alaska hollyfern Alaska Jacob's-ladder Alaska knotweed Alaska moonwort Alaska oniongrass Alaska paper birch Alaska plantain Alaska rein orchid Alaska rush Alaska saxifrage Alaska springbeauty Alaska violet Alaska whitlow-grass Alaska wild rye Alaska wildrye Alaska willow Alaska wormwood Alaskan blueberry Alaskan bunchberry Alaskan harebell Alaskan moss-heather Alaskan mountain-heather Alaskan sagebrush Alaskan shootingstar Alaskan wheatgrass Albanian spurge Alberta beardtongue Alberta penstemon alderleaf buckthorn alder-leaved buckthorn Aleut red fescue Aleutian adder's-mouth orchid Aleutian brome Aleutian cress Aleutian maidenhair Aleutian mugwort Aleutian violet alfalfa alfalfa dodder alkali aster alkali cordgrass alkali muhly alkali plantain alkali sacaton alkali saltgrass alkali saltgrass (var. stricta) alkali-marsh butterweed alkanet Alleghaney blackberry Allegheny blackberry Allegheny stonecrop alp lily alpie spring beauty alpine anemone alpine arnica alpine aster alpine bearberry alpine bentgrass alpine bistort alpine bittercress alpine bitter-cress alpine blue grass alpine bluegrass alpine bog laurel alpine bog swertia alpine buckwheat alpine bulrush alpine chickweed alpine cliff fern alpine club-moss alpine false candytuft alpine fescue alpine fir alpine fir-moss alpine golden buckwheat alpine hedysarum alpine heuchera alpine lady fern alpine larch alpine laurel alpine leafybract aster alpine lewisia alpine marsh violet alpine meadow butterweed alpine meadow-foxtail alpine meadowrue alpine meadow-rue alpine milkvetch alpine milk-vetch alpine mountainsorrel alpine paintbrush alpine phacelia alpine pondweed alpine poppy alpine rush alpine sandwort alpine saxifrage alpine sedge alpine sheep sorrel alpine smelowskia alpine snowbells alpine sorrel alpine speedwell alpine spicywintergreen alpine springbeauty alpine sweetgrass alpine sweetvetch alpine sweet-vetch alpine timothy alpine willow alpine willowherb alpine woodsia alpine yellow fleabane alpine yellowcress alpine-azalea alpine-wintergreen alsike clover altai fescue amabilis fir American alpine speedwell American beachgrass American bird's-foot trefoil American bistort American bittersweet American black nightshade American brooklime American bugseed American bulrush American burnweed American bush-cranberry American chamaerhodos American chestnut American cow wheat American cranberry American cranberrybush American dragonhead American dunegrass American dwarf mistletoe American eelgrass American elm American germander American glasswort American glehnia American hedge-hyssop American larch American licorice American mannagrass American milkvetch American milk-vetch American red raspberry American reedgrass American rockbrake American sawwort American saw-wort American searocket American silvertop American skunkcabbage American sloughgrass American speedwell American spurred gentian American sweet-flag American tapegrass American trailplant American vetch American water horehound American water-plantain American white waterlily American wild carrot American winter cress American yellowrocket amur maple amur privet anadyr draba analogue sedge Andean evening-primrose Andean watermilfoil Anderson's hollyfern androsace buckwheat angel's trumpet angled bitter-cress anise annual agoseris annual baby's breath annual bluegrass annual canarygrass annual daisy annual false dandelion annual fleabane annual hairgrass annual hawksbeard annual honesty annual Jacob's-ladder annual knawel annual paintbrush annual pearlwort annual polemonium annual rabbitsfoot grass annual ragweed annual ryegrass annual sow-thistle annual vernalgrass annual wallrocket annual water minerslettuce annual wheatgrass annual yellow sweetclover antelope bitterbrush antelope-brush apargidium apetalous catchfly apple mint applemint apricot arbutus arctic alpine fleabane arctic aster Arctic bellflower arctic bentgrass arctic blackberry arctic bladderpod arctic bluegrass arctic buttercup arctic campion arctic catchfly Arctic cinquefoil arctic cottongrass arctic cotton-grass arctic daisy arctic eyebright Arctic harebell arctic lupine arctic pearlwort arctic plantain Arctic poppy Arctic red fescue arctic rush Arctic sandwort Arctic Starflower arctic sweet coltsfoot arctic willow arctic wintergreen arctic wood-rush arctic yellow violet arctic-alpine daisy Arkansas rose Armenian grape hyacinth arrow bamboo arrowleaf balsamroot arrowleaf ragwort arrowleaf rattlesnakeroot arrow-leaved coltsfoot arrow-leaved groundsel arrow-leaved ragwort arrow-leaved rattlesnake-root arumleaf arrowhead arum-leaved arrowhead ascending saxifrage ashy cinquefoil Asia minor bluegrass Asian forget-me-not Asian knotweed Asiatic tearthumb aspen fleabane asp-of-Jerusalem astilbe Athabasca willow Atkinson's coreopsis Atkinson's tickseed Atlantic ivy aucher-eloy grape hyacinth Austin's knotweed Australian goosefoot Australian waterbuttons Austrian draba Austrian whitlow-grass Austrian yellowcress autumn dwarf gentian autumn hawkbit autumn olive autumn willow awl-fruited Sedge awlwort awned cyperus awned sedge Aztec tobacco baby snapdragon baby's breath bachelor's-button Back's sedge Baffin Bay draba Baffin Bay whitlow-grass Baffin fescue bald brome bald sedge bald spike-rush baldhip rose Balkan catchfly ball mustard ballhead waterleaf ballmustard balloon sack clover balsam balsam poplar balsam poplar (ssp. balsamifera) balsam willow Baltic rush baneberry Banff bluegrass barbed bristlegrass Barclay's willow barestem biscuitroot barestem desert-parsley barestem teesdalia bare-stemmed mitrewort Barratt's willow barren brome barren fescue barrenground willow barren-ground willow basalt milkvetch basil thyme basil-thyme basin cryptantha basin nemophila basin wildrye basket willow bastard cabbage bastard toadflax bastard toad-flax (var. umbellata) bats-in-the-belfry bay forget-me-not beach bindweed beach bluegrass beach groundsel beach knotweed beach lovage beach morning glory beach pea beach pine beach Sandspurry beach sand-spurry beach strawberry beach wormwood beaked ditch-grass beaked hawksbeard beaked hazelnut beaked sedge beaked spikerush beaked spike-rush bearberry cotoneaster bearberry honeysuckle bearded fescue bearded flatsedge bearded owl-clover bearded sedge bearded sprangletop beardless rabbitsfoot grass beardless wildrye bear-grass bear's-foot sanicle beautiful alumroot beautiful bitter-cress beautiful cinquefoil beautybush beauverd spirea Bebb willow Bebb's sedge Bebb's willow Beckwith's milkvetch beefsteakplant bell heather Bellardi bog sedge Bellard's kobresia bent sedge bent spike-rush bentflower milkvetch bent-flowered milk-vetch Bering chickweed Beringian cinquefoil Bermuda grass Bicknell's crane's-bill Bicknell's geranium bicoloured flaxflower bicoloured linanthus biennial campion biennial cinquefoil biennial wormwood bifid hemp-nettle big devils beggartick big quaking grass big sagebrush big western bittercress bigbract verbena Bigelow's sedge bigflower agoseris bigflower tellima bigfruit evening primrose big-headed sedge bigleaf lupine bigleaf maple bigleaf periwinkle bigleaf sedge big-leaved lupine big-leaved sandwort bigrooted geranium bigseed biscuitroot bilberry bilberry willow Bingen lupine Bingen's Lupine bipinnate cinquefoil birch-leaved spirea bird cherry bird vetch birdeye pearlwort birdeye speedwell birdfoot buttercup bird's foot bird's rape bird's-beak lousewort bird's-eye pearlwort bird's-eye speedwell bird's-foot trefoil birds-foot trefoil bishop's weed bitter cherry bitter dock bitter fleabane bitter root bitter winter cress bitter-brush bitterroot bitterweed black alpine sedge black bindweed black birch black blueberry black cherry black cottonwood (ssp. trichocarpa) black crowberry black cup fungus black elder (var. melanocarpa) black elderberry black gooseberry black hawthorn black henbane black huckleberry black knapweed black knotweed black lily black locust black medic black medick black mustard black nightshade black nightshade black poplar black raspberry black sanicle black sedge black spruce black swamp gooseberry black twinberry black vetch blackandwhite sedge blackened sedge blackeyed susan black-eyed susan blackfoot groundsmoke Blackfoot River evening-primrose blackgirdle bulrush blackish locoweed blackish oxytrope black-scaled sedge blackthorn black-tipped groundsel bladder campion bladder senna Blake's knotweed blazing-star blazing-star mentzelia blessed milkthistle blind eyes blindeyes blinks blister sedge blond plantain bloodtwig dogwood bloody cranesbill blue cattail blue clematis blue columbine blue corydalis blue creeper blue elderberry blue fenugreek blue fescue blue field gilia blue fieldmadder blue flag blue flax blue forget-me-not blue giant hyssop blue grama blue hackelia blue lettuce blue mustard blue skullcap blue stickseed blue vervain blue water speedwell blue wildrye blue woodruff blue-bead clintonia bluebell bellflower bluebells-of-Scotland blueberry willow bluebunch wheatgrass bluehead gilia bluejoint bluejoint reedgrass blue-leaved cinquefoil blue-leaved huckleberry bluestem wheatgrass blueweed blunt broom sedge blunt sedge blunt spikerush blunt spike-rush blunt-fruited sweet-cicely bluntleaf pondweed bluntleaf sandwort bluntleaf yellowcress bluntleaved orchid blunt-leaved pondweed blunt-leaved sandwort blunt-leaved yellow cress bluntseed sweetroot blunt-sepaled starwort blushing rock-cress bog adder's-mouth orchid bog bilberry bog birch bog bird's-foot trefoil bog birds-foot trefoil bog blueberry bog bluegrass bog chickweed bog clubmoss bog club-moss bog cranberry bog Labrador tea bog loosestrife bog muhly bog rush bog sandwort bog sedge bog St. John's-wort bog starwort bog white violet bog willow bog willowherb bog-rosemary bohemian knotweed Bolander's rush Bolander's sedge Bonneville shootingstar Booth's willow boreal bedstraw Boreal bog sedge boreal cinquefoil boreal draba boreal locoweed boreal sandwort boreal starwort boreal wormwood boreal yarrow Bostock's minerslettuce Bostock's montia bottle sedge Bouchon's amaranth bouncingbet bouncing-bett Bourgeau's milk-vetch Bourgeau's pepper-grass box elder box knotweed bracken fern bracted lousewort bracted vervain bractless hedgehyssop bractless hedge-hyssop branched pepper-grass Branched Phacelia branching montia branching phacelia Brandegee's desertparsley Brandegee's lomatium brass buttons Braun's hollyfern Brazilian water-meal Brazilian water-milfoil Brazilian waterweed Brewer's bitter-cress Brewer's cliff-brake Brewer's mitrewort Brewer's monkey-flower Brewer's rush bride's bonnet bride's feathers bristle clubrush bristleleaf bulrush bristleleaf sedge bristle-leaved sedge bristle-like quillwort bristle-stalked sedge bristly crowfoot bristly dogstail grass bristly fiddleneck bristly hawksbeard bristly lady's thumb bristly locust bristly mousetail bristly ox-tongue bristly stickseed bristlystalked sedge British Columbia bugseed brittle bladderfern brittle pricklypear brittle prickly-pear cactus brittlestem hempnettle broadfruit bur-reed broad-fruited bur-reed broadleaf arnica broadleaf arrowhead broadleaf cattail broadleaf helleborine broadleaf knotweed broadleaf lupine broadleaf stonecrop Broad-leaved Arrowhead broad-leaved peavine broad-leaved penstemon broad-leaved pepper-grass broadleaved pepperweed broad-leaved shootingstar broad-leaved starflower broad-leaved stonecrop broad-leaved twayblade broad-leaved willowherb broadpetal gentian broad-petalled gentian broadtooth lady's mantle broad-wing sedge broccoli, brussel sprouts, kale brome fescue bronze sedge brook cinquefoil brook spike-primrose Brookgrass broom sedge broomcorn millet broom-corn millet brown beak-rush brown knapweed brown mustard brown-eyed Susan brownfruit rush brown-fruit rush brownish sedge brownray knapweed buckbean buckhorn plantain buck's-horn plantain buckwheat buff daisy buff fleabane Buffalo currant buffalo plum buffalo weed buffalo-bur buffalobur nightshade bugle-weed bugloss fiddleneck bulbil onion bulblet-bearing water hemlock bulbous bluegrass bulbous bulrush bulbous buttercup bulbous rush bulbous tall oatgrass bulbous water-hemlock bulbous woodland-star bull clover bull thistle bunchberry bunchberry dogwood bur bristlegrass bur chervil burclover bur-clover burgrass Burke's lupine burning nettle bush penstemon bushy blazingstar bushy cinquefoil bushy knotweed bushy mentzelia buttecandle butter and eggs butter-and-eggs buttercup suksdorfia buttercup-leaved suksdorfia butterfly bearing lomatium butterfly-bush buttonbush dodder button-bush dodder Buxbaum's sedge cabbage calcareous water sedge Calder's licorice-root Calder's lovage Calder's suncress calico aster California blackberry California brome California broomrape California buttercup California comandra California comandra (var. californica) California figwort California gilla California hazelnut California hedge-parsley California huckleberry California Jacob's ladder California nettle California oatgrass California poppy California rhododendron California seapink California Sword-fern California wax-myrtle California willow dock California willowherb California-tea calthaleaf avens caltha-leaved avens Canada anemone Canada bluegrass Canada burnet Canada cockleburr Canada germander Canada Goldenrod Canada lettuce Canada mayflower Canada milk-vetch Canada mint Canada mountain-ricegrass Canada ricegrass Canada thistle Canada toadflax Canada violet Canada wildrye Canadian buffalo-berry Canadian bunchberry Canadian burnet Canadian butterweed Canadian fleabane Canadian gooseberry Canadian hawkweed Canadian hawkweed Canadian horseweed Canadian mayflower Canadian milkvetch Canadian milk-vetch Canadian rush Canadian sandspurry Canadian sand-spurry Canadian waterweed Canadian white violet Canadian wild lettuce canary violet canarygrass Canby's licorice-root Canby's lovage candle anemone candystick candytuft cannabis canoe birch cantaloupe Canterbury bells Canterbury-bells Cape gooseberry Cape Thompson draba caper spurge capitate lousewort capitate sedge Capitate Valerian caraway Carolina bugbane Carolina crane's-bill Carolina draba Carolina foxtail Carolina geranium Carolina horsenettle Carolina meadow-foxtail Carolina mosquitofern Carolina whitlow-grass carpet burrweed carpet burweed carrot-leaved desert parsley Cascade azalea Cascade bilberry Cascade blueberry cascade desertparsley Cascade huckleberry Cascade parsley fern Cascade rockbrake cascade wallflower Cascade willow Cascades early blue violet cascara cassandra Castlegar hawthorn catchweed catnip Caylusea celandine celery-leaved buttercup cereal rye chaffweed chairmaker's bulrush Chalapa hoarycress Chamisso arnica chamisso sedge Chamisso’s cotton-grass Chamisso's cotton-grass Chamisso's montia Chamisso's rein orchid changing forget-me-not chaparral willowherb charlock charming barley charming barley (ssp. leporinum) cheatgrass checker lily Cheddar pink chee reedgrass cheeseweed mallow Chelan beardtongue Chelan penstemon cherry laurel cherry plum cherry silverberry cherry-laurel chervil chess-apple chestnut rush Chewing's red fescue chick pea chick-pea milk-vetch chicory childing pink Chilean tarweed Chimissso's orchid Chinese firethorn Chinese fountaingrass Chinese foxtail Chinese lantern Chinese mallow Chinese matrimony vine Chinese millet Chinese mustard Chinese Yellowcress chocolate lily choke cherry chokecherry cicer milkvetch clammy goosefoot clammy hedgehyssop clammy locust clasping coneflower clasping mullein clasping pepperweed clasping twistedstalk clasping Venus' looking-glass clasping-leaved pepper-grass claspleaf twistedstalk Clearwater Cat's-eye cleavers Cleft-leaved Groundsel cliff dwarf-primrose cliff paintbrush cliff sand-spurrey cliff selaginella cliff wood beauty cliff woodbeauty climbing false buckwheat climbing nightshade cloaked bulrush closed-leaved pondweed close-flowered knotweed close-flowered knotweed (ssp. confertiflorum) cloud sedge cloudberry clover dodder club sedge club spikemoss club-fruited willowherb clubmoss mountain heather club-moss mountain-heather clubmoss mountain-heather cluster rose clustered bellflower clustered broomrape clustered clover clustered dock clustered dodder clustered field sedge clustered tarweed clustered thistle clustered wild rose coast boykinia coast Douglas-fir coast microseris coast mountain draba coast mountain whitlow-grass coast penstemon coast silverweed coast tarweed coastal black gooseberry coastal brookfoam coastal hedgenettle coastal mugwort coastal pearlwort coastal quillwort coastal red elder (var. arborescens) coastal red elderberry coastal sand sedge coastal sand verbena coastal silverpuffs coastal stellate sedge coastal strawberry coastal willow coastal wood fern coastal woodfern coastal wormwood coastline bluegrass cockscomb cryptantha cock's-comb cryptantha codlins and cream coil-beaked lousewort coiled lousewort coiled sedge colchis ivy Collins' suncress colonial bentgrass Colorado rush coltsfoot Columbia bladderpod Columbia bower Columbia brome Columbia clematis Columbia gromwell Columbia hybrid aster Columbia lady's-slipper Columbia lewisia Columbia lily Columbia Monkshood Columbia Needle Grass Columbia needlegrass Columbia ragwort Columbia River monkey-flower Columbia River mugwort Columbia River wormwood Columbia sedge Columbia virgin's bower Columbian goldenweed Columbian monkshood Columbian sedge Columbian watermeal Columbian water-meal common agrimony common alplily common balm common barberry common barley common bearberry common beargrass common beggarticks common bluebell common bluecup common borage common brassbuttons common broom common bugle common bugloss common bulrush common burdock common butterwort common California aster common camas common carpetweed common catchfly common cattail common centaury common chamomile Common Chickweed common chicory common clarkia common cocklebur common comfrey common corncockle common cottonrose common cowparsnip common crown-vetch common cryptantha common dandelion common dead-nettle common dill common dodder common dogbane common dogmustard common dog-violet common downingia common draba common duckweed common dwarf snapdragon common eel-grass common evening-primrose common false asphodel common fiddleneck common filago common filbert common flax common forget-me-not common foxglove common fumatory common fumitory common gaillardia common gorse common groundsel common gypsyweed Common Harebell common hawkweed common hawthorn common heathgrass common hop common hops common horehound common hornwort common horseradish common horsetail common hound's-tongue common juniper common kidneyvetch common knotweed common lilac common lomatium common maidenhair common mallow common mare's-tail common mignonette common milkwort common mitrewort common motherwort common mouse-ear chickweed common mugwort common mullein common nipplewort common oat common orache common osier common parsnip common pear common pearlwort common pepperweed Common Periwinkle common pink wintergreen common pipsissewa common pitcher-plant common plantain common privet common purslane common rabbit-brush common rabbit-bush common ragweed common red paintbrush common reed common rivergrass common rush common sage common salsify common sandweed common selfheal common sheep sorrel common silverweed common snapdragon common sneezeweed common snowberry common snowdrop Common Sorrel common sowthistle common sow-thistle common speedwell common spikerush common spike-rush common spring-gold common St. Johnswort common St. John's-wort common starwort common stickseed common stork's-bill common sunflower common sweetgrass common tansy common threesquare common timothy common toadflax common touch-me-not common twinpod common valerian common velvetgrass common velvet-grass common vervain common vetch common viper's bugloss common wallflower common watercress common wheat common whitlow-grass common winter cress common witchgrass common wood sorrel common woodrush Common Woolly Sunflower common wormwood common yampeh common yarrow common yellow oxalis compact rush compact selaginella composite dropseed compressed rush coneplant cone-plant contorted-pod evening-primrose Cooley’s hedge-nettle Cooley's buttercup Cooley's hedge-nettle coon's tail coontail copperbush coral necklace Cordilleran sedge Cordilleran wood beauty cordroot sedge coriander corn brome corn buttercup corn chamomile corn gromwell corn lily corn mustard corn poppy corn speedwell corn spurry cornflower cornsalad corn-spurry corrugate-seeded spurge corrupt spleenwort Corsican mint costmary cotoneaster cotton-batting cudweed Coville's rush cowbag clover cow-basil cow-parsnip cows clover cow-wheat coyote tobacco coyote willow cranberry cranesbill Crawe's sedge Crawford's sedge cream pea cream pincushions creambush cream-flowered cotoneaster cream-flowered peavine creamy peavine creeping bellflower creeping bentgrass creeping buttercup creeping cinquefoil creeping jenny creeping juniper creeping loosestrife creeping meadow foxtail creeping Oregon-grape creeping raspberry creeping sedge creeping sibbaldia creeping snowberry creeping softgrass creeping spearwort creeping spike-rush creeping velvetgrass creeping velvet-grass creeping wildrye creeping willow creeping willowherb creeping woodsorrel creeping yellow cress creeping yellowcress creepingroot violet creeping-snowberry crenulate-leaved mountain avens Crested Beardtongue crested dogstail grass crested dogtail Crested Wheat Grass crested wheatgrass crested wood fern crested woodfern cretan bryony crevice alumroot crevice suncress crimson clover crinkleawn fescue crinkle-awned fescue crisp sandwort crisp starwort crooked yellow stonecrop crossflower crowberry crown Brodiaea crunch weed cryptic wintergreen cuckoo bitter-cress cuckoo-flower cucumber herb cultivated apple cultivated currant cultivated radish cultivated walnut cup clover curled dock curled pondweed curled starwort curly dock curly plumeless thistle curly pondweed curly sedge curlycup gumweed curly-cup gumweed Currant cursed buttercup cursed crowfoot curve-beaked lousewort curved hardgrass curved sedge curved sicklegrass Curved Woodrush curved wood-rush Curved-spike Sedge Curved-spiked Sedge curvepod yellowcress cushion buckwheat cushion daisy cushion fleabane Cusick's aster Cusick's bluegrass Cusick's locoweed Cusick's paintbrush Cusick's popcornflower Cusick's sedge Cusick's speedwell cutleaf beardtongue cutleaf blackberry cutleaf cinquefoil cutleaf coneflower cutleaf daisy cutleaf evergreen blackberry cutleaf geranium cutleaf nightshade cutleaf sagebrush cutleaf teasel cutleaf thelypody cutleaf watermilfoil cutleaf waterparsnip cut-leaved anemone cut-leaved crane's-bill cut-leaved daisy cut-leaved foamflower cut-leaved foamflower (var. laciniata) cut-leaved geranium cut-leaved nightshade Cut-leaved Thelypody cut-leaved water horehound cut-leaved water-parsnip cypress spurge Daffodil dagger-leaf rush Dahurian willowherb dainty moonwort daisy-leaved toadflax dallisgrass Dalmatian toadflax dames rocket dames'-violet dandelion hawksbeard Dane's blood Dane's dwarf gentian Dane's Gentian dangling suncress Danish scurvygrass dark lamb's-quarters dark mullein dark pussytoes dark sandbar willow dark-green hawthorn darkthroat shootingstar darkwoods violet Darwin's berberis Davidson's penstemon Davis' locoweed Davis' oxytrope davy mannagrass Dawson crabapple Dawson's angelica Deep Green Sedge deer fern deer foot deer paintbrush deer-cabbage delicate buttercup delta maidenhair deltoid balsamroot Denali fleabane dense lace fern dense silkybent dense spike-primrose denseflower willowherb dense-flowered cordgrass dense-flowered lupine denseleaf draba densetuft hairsedge dentate shootingstar depressed lupine Deptford pink Description desert alyssum desert biscuitroot desert centaury desert fescue desert goosefoot desert madwort Desert Ragwort desert rock purslane desert shootingstar desert yellow fleabane devil's beggartick devil's club devilsclub Dewey's Sedge diamond clarkia diamondleaf willow diamond-leaved willow diapensia dichotoma silene Diel's cotoneaster diffuse collomia diffuse fleabane diffuse gilia Diffuse Groundsmoke diffuse knapweed dill diploid annual bluegrass disc mayweed ditch rabbit's-foot grass ditch stonecrop dittander divaricate navarretia diverse arnica diverse-leaved cinquefoil diverse-leaved water-starwort dog mustard dog nettle dog rose Dore's needlegrass Dortmann's cardinalflower dotted blazing star dotted saxifrage dotted smartweed Double Twinpod doubtful knight's-spur Douglas' aster Douglas' bladderpod Douglas' blue-eyed-grass (var. douglasii) Douglas' campion Douglas' catchfly Douglas' dustymaiden Douglas' dwarf mistletoe Douglas fir dwarf mistletoe Douglas' grasswidow Douglas' helianthella Douglas maple Douglas' sagewort Douglas' sedge Douglas' silene Douglas' spirea (ssp. douglasii) Douglas' water-hemlock Douglas-fir Douglas's knotweed dovefoot crane's-bill dovefoot geranium downy birch downy brome downy ryegrass drooping woodreed drops-of-gold dropwort drug fumitory Drummond's anemone Drummond's Campion Drummond's Cinquefoil Drummond's milk-vetch Drummond's mountain-avens Drummond's rush Drummond's thistle Drummond's willow dryland ragwort dry-land sedge dryspike sedge ducksbill lousewort Dudley's rush dull Oregon-grape dune bentgrass dune bluegrass dune camphorweed dune rush dune sweet pea dune tansy dune wildrye dune willow dunegrass Dunhead Sedge dusky willow dwarf alkaligrass dwarf bilberry dwarf birch dwarf blueberry dwarf bog bunchberry dwarf bramble dwarf braya dwarf clubrush Dwarf Groundsmoke dwarf hawksbeard dwarf hesperochiron dwarf honeysuckle dwarf juniper dwarf maiden-hair fern dwarf mallow dwarf marsh violet dwarf milkvetch dwarf minerslettuce dwarf montia dwarf mountain butterweed dwarf mountain lupine dwarf mountain ragwort dwarf mouse-ear dwarf nagoonberry dwarf nettle Dwarf Owl-clover dwarf owl's-clover dwarf poppy dwarf raspberry dwarf rattlesnake orchid dwarf red blackberry dwarf red fescue dwarf red raspberry dwarf rose dwarf sandwort dwarf sawwort dwarf scouringrush dwarf scouring-rush dwarf snow willow dwarf spikerush dwarf spike-rush Dwarf spike-rush dwarf St. Johnswort dwarf thistle Dwarf Trillium Dwarf waterleaf dwarf woolly-heads dyer's greenweed dyer's woad dyersweed goldenrod earless suncress early blue violet early hairgrass early sandgrass early sedge early winter cress early yellowrocket earth loosestrife eastern cottonwood eastern daisy fleabane eastern knotweed eastern mosquito fern eastern nightshade eastern red elder (var. leucocarpa) eastern red elderberry eastern tumble-mustard Eaton's aster edible thistle edible valerian Edwards' mock wallflower Edwards wallflower eel-grass pondweed eggleaf beardtongue eggleaf spurge egg-shaped spike-rush eightpetal mountain-avens elecampane elegant calicoflower elegant cinquefoil elegant hawksbeard elegant Jacob's-ladder elegant milkvetch elegant milk-vetch elegant piperia elegant polemonium elegant rein orchid elephanthead lousewort elephant's-head lousewort elk sedge elk thistle elkslip elliptic spikerush elliptic spike-rush elliptical buttercup elliptic-leaved penstemon Ellisia elmera Elmer's Butterweed Elmer's paintbrush Elmer's ragwort Elvis' sedge emersed bur-reed eminent bluegrass Enander's sedge enchanter's-nightshade Enderby hawthorn Engelmann spruce Engelmann spruce Engelmann's aster Engelmann's knotweed Engelmann's sedge Englemann's spike-rush English cordgrass English daisy English holly English ivy English lavender English oak English plantain English ryegrass English sundew English Walnut English yew English-bluebell entireleaf mountain-avens entire-leaved daisy entire-leaved gumweed entire-leaved mountain-avens Entire-leaved Stonecrop entire-leaved white mountain-avens erect brome erect hedgeparsley Erect Pigmyweed erect pygmyweed erratic false bindweed Eschscholtz's buttercup Eschscholtz's hairy rockcress Eschscholtz's little nightmare Eschscholtz's rockcress estuarine paintbrush Eurasian dragonhead Eurasian watermilfoil Eurasian water-milfoil European alkaligrass European ash European beachgrass European bellflower European bindweed European birch European bird cherry European bittersweet European blackberry European bugloss European bur-reed European bush-cranberry European centaury European chickweed European columbine European cranberrybush European field bitter-cress European Field Pansy European forget-me-not European goosefoot European hawkweed European honeysuckle European honeysuckle European horehound European mountain-ash European plum European privet European rush European searocket European speedwell European stickseed European stoneseed European thimbleweed European thrift European water-hemlock European water-plantain European water-purslane European white birch European wild pansy European woodland sedge European yellow lupine evergreen blackberry evergreen bugloss evergreen candytuft evergreen clematis evergreen huckleberry evergreen saxifrage evergreen violet evergreen yellow violet eyebane fairy flax fairy-slipper falcate rush Falkland Island sedge fall dandelion fall panicgrass fall sneezeweed false azalea false baby's breath false bugbane false carrot false cleavers false diamondflower false garlic false lily of the valley false lily-of-the-valley false melic false mermaidweed false mountain willow false oatgrass false Solomon's-seal false spiraea false strawberry false sunflower false toadflax false toad-flax false-agoseris falsebox false-chamomile false-mermaid false-pimpernel fan-leaved cinquefoil farewell to spring farewell-to-spring far-northern buttercup Farr's willow Farwell's water-milfoil feather geranium feathery false lily of the valley February daphne feltleaf willow felt-leaf willow felwort Fendler threeawn Fendler's waterleaf fennel-leaved desert-parsley fennel-leaved pondweed Fernald's alkaligrass Fernald's false manna fernleaf fernleaf biscuitroot fernleaf goldthread fernleaf yarrow fern-leaved desert-parsley fern-leaved goldthread Ferriss' scouring-rush fescue sandwort feverfew fewflower clover fewflower evening-primrose fewflower fumewort fewflower meadow-rue fewflower sedge fewflower spikerush few-flowered bluegrass few-flowered clover few-flowered corydalis few-flowered meadowrue few-flowered sedge few-flowered shootingstar few-flowered spike-rush few-fruited lomatium fewseed draba fewseeded bog sedge few-seeded draba few-seeded fen sedge few-seeded whitlow-grass fiddleleaf hawksbeard field bindweed field brome field burrweed field chickweed field clover field dock field dodder field filago field forget-me-not field garlic Field Goldenrod field hedge-nettle field horsetail field locoweed field madder field maple field marigold field milk-vetch field mint field morning glory field mustard field parsley piert field pennycress field pepper-grass field pepperweed field pumpkin field pussytoes field sagewort field sandbur field scabiosa field scabious field sedge field sowthistle field woodrush field wood-rush figleaf goosefoot filago filbert fineleaf pondweed fineleaf sheep fescue fine-leaved lomatium fireberry hawthorn fireleaf leptarrhena fireweed firmleaf willow Fischer's chickweed fiveangled dodder five-angled dodder five-hooked bassia fivehorn smotherweed Five-leaved Bramble fivestamen chickweed five-stamened mitrewort flagellate hawkweed flat pea Flathead Larkspur flatleaf bladderwort flatleaf red fescue flat-leaved bladderwort flatspine stickseed flat-stalked pondweed flatstem pondweed flat-stemmed spike-rush flat-top broomrape flat-top draba flat-top goldentop flat-topped broomrape fleshy jaumea fleshy starwort flexile milk-vetch flixweed floating bur-reed floating marsh-marigold floating marshpennywort floating pondweed floating sweet-grass floating water pennywort floating-leaved pondweed Floccose Tansy Flodman's thistle flowering ash flowering quillwort flowering quince flowering tobacco flowering-rush flower-of-an-hour fly honeysuckle foliose oxytrope foliose willowherb fool's cicely fool's parsley foothill arnica foothill sedge footsteps of spring forest scurfpea forked catchfly forked cinquefoil forked pepperweed forked wood-rush forked wormwood forsythia fortune meadowsweet four-angled mountain-heather fourleaf mare's-tail four-leaved all-seed four-leaved mare's-tail fourpart dwarf gentian Four-parted Gentian fowl bluegrass fowl mannagrass Fowler's knotweed fox sedge foxberry foxtail barley foxtail bristlegrass foxtail millet foxtail mint foxtail muhly foxtail pricklegrass foxtail wheatgrass fragile fern fragile rockbrake fragile sedge fragrant bedstraw fragrant goldenrod fragrant popcornflower fragrant waterlily fragrant white bog orchid fragrant white rein orchid fragrant wood fern fragrant woodfern Franklin's phacelia Frank's sedge Frankton's draba Fraser's marsh St. Johnswort Fraser's St. John's-wort freckled milkvetch freckled milk-vetch Fremont's Goosefoot Fremont's Ragwort Fremont's stickseed French broom French lilac French spinach Fries' pondweed frigid phippsia fringecup fringed brome fringed grass of Parnassus fringed grass-of-Parnassus fringed loosestrife fringed redmaids fringed waterlilly fringed willowherb fruitleaf knotweed Fuller's Teasel Funston's saxifrage fuzzy suncress fuzzy-spiked wildrye fuzzytongue penstemon fuzzy-tongued penstemon Gairdner's yampah gallant soldier gaping goosefoot Garber's sedge garden asparagus garden baby's-breath garden chervil garden coreopsis garden cornflower garden cosmos garden cress garden heliotrope garden lobelia garden onion garden orache garden pea garden radish garden rocket garden sorrel Garden sorrel garden stonecrop garden strawberry garden tomato garden valerian garden vetch garden yellow loosestrife garden yellowrocket gardencress pepperweed Gardner's sagebrush garlic garlic mustard Garry oak Gastony's cliff-brake Georgia bulrush Gerard's rush German iris German knotgrass germander speedwell German-madwort Geyer willow Geyer's onion Geyer's sedge Geyer's willow ghost pipe giant blue eyed Mary giant bristlegrass giant chain fern giant chainfern giant cow-parsnip giant foxtail giant goldenrod giant helleborine giant hogweed giant horsetail giant knapweed giant knotweed giant mannagrass giant path rush giant ragweed giant snowdrop giant vetch giant white fawnlily giant wildrye giantchickweed giantdaisy giant-hyssop glacial sedge glacier sedge glandular baby's breath glandular birch glandular clarkia Glaucous bluegrass glaucous gentian Glaucous Willowherb glaucous-leaved honeysuckle glaucus willowherb globe artichoke globe candytuft globe gilia globe yellowcress globeflower globe-pod hoarycress glory-of-the-snow Gmelin's buttercup Gmelin's orache Gmelin's saltbush Gmelin's sedge gnome-plant goat grass goat-leaf honeysuckle goatsbeard goat's-beard godetia gold star golden bamboo golden blue-eyed grass golden carpet golden chain tree golden chamomile golden clematis golden clover golden corydalis golden currant golden daisy golden dock golden draba golden fleabane golden lungwort golden paintbrush golden sedge golden tickseed Golden virgin's-Bower golden weeping willow golden whitlow-grass golden-aster goldenback fern golden-eyed-grass goldmoss stonecrop goose tongue goosefoot violet goosegrass goosegrass sedge Gorman's beardtongue Gorman's douglasia Gorman's dwarf-primrose Gorman's penstemon gorse goutweed graceful arrow-grass graceful buttercup Graceful Cinquefoil graceful mountain sedge Graham's suncress grain sorghum grand collomia Grand Coulee owl-clover Grand Coulee owl's-clover grand fir grand redstem grape grass pea grass peavine grassland lupine (ssp. neolaxiflorus) grassland saxifrage grassleaf rush grass-leaf rush grass-leaved death-camas grass-leaved pondweed grass-leaved starwort grasslike starwort grassy tarweed grassyslope arctic sedge gray alder gray clubawn grass gray goldenrod gray pubescent plantain graygreen sorrel grayleaf draba grayleaf red raspberry grayleaf willow gray-leaved draba gray-leaved whitlow-grass Great Basin desert-parsley Great Basin nemophila great bindweed great blue lobelia great burdock great burnet great camas great duckweed great false leopardbane great globe thistle Great Lakes rein orchid great leopard's-bane great mullein great northern aster great ragweed great spurred violet great sundew greater bladderwort greater burdock greater celandine greater centaurea greater creeping spearwort greater creeping spearwort greater knapweed greater water dock greater yellow lady's slipper Greek oregeno green alder green alkanet green and white sedge green ash green bog orchid green bristlegrass green carpetweed green false hellebore green false-hellebore green fescue green field speedwell green mushroom pimple green needlegrass green parrot's-feather green pigweed green rabbit-brush green sedge green sorrel green spleenwort green wintergreen Greene's mountain ash greenflowered wintergreen greenfruit sedge green-fruited sedge Greenish Sedge greenish wintergreen green-keeled cotton-grass Greenland primrose Greenland yellow rattle greenleaf fescue green-sheathed sedge grey beach peavine grey horsebrush grey poplar grey sedge grey willow grey-leaved willow grizzlybear prickly pear grooved agrimony ground elder ground ivy ground juniper ground plum ground plum milk-vetch ground-cedar ground-ivy ground-pine groundplum milkvetch grouse whortleberry grouseberry Gulf Coast bulrush gummy gooseberry gypsyflower gypsywort Haenke's rush Haid Gwaii twinflower violet Haida buttercup Haida Gwaii juniper hair bentgrass hair fescue hair sedge hairgrass dropseed hairlike sedge hairstem groundsmoke hairy arnica hairy aster hairy beggarticks hairy bitter-cress hairy bugseed hairy buttercup hairy butterwort hairy catsear hairy cat's-ear hairy corn brome hairy crabgrass hairy evening primrose hairy evening-primrose hairy false goldenaster hairy flax hairy four o'clock hairy goldfields hairy greeweed Hairy Gumweed hairy hawkbit hairy honeysuckle hairy horseweed hairy lady's mantle hairy manzanita hairy nightshade hairy paintbrush hairy sweetgrass hairy umbrellawort Hairy Valerian hairy vetch hairy waterclover hairy water-clover hairy wheatgrass hairy wildrye hairy willlowherb hairy willowherb hairybroom hairyleaf rush Hairy-seeded Fleabane hairy-stemmed willowherb Hall's Willowherb hammer sedge hanging sedge Hansen's wildrye hard fescue hardgrass hardhack hardheads hardstem bulrush hard-stemmed bulrush hardy cyclamen hare sedge hare's ear hare's-ear mustard hare's-foot clover hare's-foot sedge Harford's melic Harford's oniongrass Harkness' linanthus harsh paintbrush harsh popcornflower Hart's pennyroyal Hart's stonecrop Hart's-tongue fern harvest brodiaea harvest rosea hawkweed hawkweed-leaved saxifrage hay sedge Hayden's sedge hazelnut heartleaf arnica heartleaf bittercress heartleaf buttercup heartleaf four o'clock heartleaf springbeauty heart-leaved Alexanders heart-leaved arnica heart-leaved aster heart-leaved bitter-cress heart-leaved buttercup heart-leaved springbeauty heart-leaved twayblade heart-podded hoarycress heart-podded hoary-cress heath rush heath sedge heather heathergrass hedge bindweed hedge false bindweed hedge garlic hedge mustard hedgehog dogtail hedgemustard Hedge-nettle hedgerow cranesbill hedgerow geranium Heimburger's buttercup helleborine Heller's rosette grass hemlock dwarf mistletoe hemlock waterparsnip hemlock water-parsnip hemp hemp agrimony hemp-nettle henbit deadnettle henbit dead-nettle Henderson's aster Henderson's checkerbloom Henderson's checker-mallow Henderson's sedge Henderson's Shooting Star herb sophia herb-Robert Hermann's dwarf rush Herman's dwarf rush heterocodon Hian's goosefoot Hibberson's trillium high alpine butterweed high arctic cinquefoil high mallow high mountain cinquefoil high northern buttercup High-Arctic dandelion highbush blueberry highbush huckleberry highbush-cranberry highland bentgrass hillside milkvetch hillside milk-vetch Himalayan blackberry Himalayan cotoneaster Himalayan knotweed Hind's sedge Hind's willow Hispanic hyacinthoides hispid yellow cress Hitchcock's wood-rush hoary alyssum hoary aster hoary draba hoary false yarrow Hoary Pincushion hoary plantain hoary tansyaster hoary willow hoary yellow cress hoary yellowcress hoe nightshade hogweed hollyhock Holm's Rocky Mountain sedge holy-clover honesty hooded coralroot hooded ladies' tresses Hood's sedge hooked bristlegrass hookedspur violet Hooker's bugseed Hooker's ceanothus Hooker's Cinquefoil Hooker's fairybells Hooker's onion Hooker's thistle Hooker's Townsend daisy Hooker's townsendia Hooker's willow horehound horned dandelion horned pondweed Hornemann's willowherb hornseed buttercup horse chestnut Horse Cinquefoil horse mint horseradish horseweed hound's-tongue hawkweed Howell's bluegrass Howell's minerslettuce Howell's montia Howell's pussytoes Howell's quillwort Howell's triteleia Howell's violet Huddelson's locoweed Huddelson's oxytrope Hudson Bay clubrush Hudson Bay currant Hudson Bay sedge Hulten's licorice-root humped bladderwort Huron green orchid hybrid bluebells hybrid cherry hybrid comfrey hybrid manzanita hybrid ragwort hybrid sundew hybrid Ucluelet wildrye hybrid white spruce hybrid white willow hybrid wildrye Hyssop loosestrife Iberian comfrey ice poppy icegrass Iceland koenigia Iceland poppy Icelandic poppy Idaho bentgrass Idaho blue-eyed grass Idaho blue-eyed-grass Idaho fescue Idaho saxifrage Illinois pondweed India lovegrass inflated grasswidow inflated sedge inflated tobacco inland rush inland sedge interior bluegrass interior bluegrass (ssp. interior) interior wildrice intermediate barley intermediate mountain heather intermediate needle and thread intermediate oakfern intermediate wheatgrass interrupted apera introduced sage inundated clubmoss Iowa golden carpet Iowa golden-saxifrage irregular polypody island purslane Italian arum Italian bugloss Italian clover Italian ryegrass ivy leaved cyclamen ivyleaf morning-glory ivyleaf speedwell ivy-leaved duckweed ivy-leaved speedwell ivy-leaved toadflax Jacob's-ladder jagged chickweed Jakutsk snowparsley Japanese angelica tree Japanese barberry Japanese brome Japanese butterbur Japanese catnip Japanese eel-grass Japanese knotweed Japanese pearlwort Japanese snowball Japanese sweet coltsfoot Japanese walnut Japanese wineberry Jeffrey's Shooting Star Jeffrey's shootingstar Jersey cudweed Jerusalem artichoke Jerusalem artichoke Jerusalem oak goosefoot Jerusalem-oak Jessica sticktight jewelled suncress jewelweed jimsonweed Joe-pye weed Joe-pye-weed johnny jumpup Johnny-jump-up johnny-nip Johnsongrass jointed goatgrass jointed rush jointleaf rush Jones' sedge Jordal's locoweed Jordal's oxytrope junegrass Kalm's lobelia Kamchatica rockcress Kamchatka fritillary Kamchatka rockcress Kamchatka spikerush Kamchatka spike-rush Kelley's juniper Kellogg`s sedge Kellogg's dwarf rush Kellogg's knotweed Kellogg's knotweed (ssp. kelloggii) Kellogg's rush Kenilworth ivy Kentucky bluegrass kidney bean kidney-leaved buttercup kidney-leaved violet Kincaid's lupine king devil king devil hawkweed king gentian kingdevil hawkweed king's scepter gentian kinnikinnick Kluane cinquefoil kneeling angelica knotgrass knotsheath sedge knotted clover knotted rush knotty-rooted figwort Kotzebue's grass of Parnassus Kotzebue's grass-of-Parnassus Krause's sedge Kruckeberg's hollyfern Krylov's trefoil Kusche's lupine Labrador buttercup Labrador lousewort Labrador tea laburnum lace fern lace lipfern lacy phacelia lady fern lady's mantle lady's-mantle lady's-smock lady's-thumb Lake Huron tansy Lake Louise arnica lake sedge Lamarck's bedstraw Lamarck's serviceberry Lamb's-ear lambsquarters lamb's-quarters lambstongue ragwort lance selfheal lance-fruited draba lance-fruited whitlow-grass lanceleaf figwort lanceleaf sage lanceleaf springbeauty lanceleaf tickseed lanceleaf water plantain lance-leaved draba lance-leaved figwort lance-leaved mare's tail lance-leaved stonecrop Lance-leaved Violet lance-leaved water-plantain lance-leaved whitlow-grass lancepod draba Langsdorf's lousewort Lapland buttercup Lapland cornel Lapland mountain sorrel Lapland reedgrass Lapland rosebay Lapland Sedge Lappland sedge larch dwarf mistletoe large barnyard-grass large camas large Canadian St. John's-wort large cranberry large false Solomon's seal large mosquito fern large mountain monkey-flower Large Periwinkle large round-leaved rein orchid large St. Johnswort large water-starwort large wintergreen large yellow loosestrife large yellow sedge large-awned sedge largebracted plantain largeflower fairybells largeflower fleabane largeflower goldenweed largeflower hawksbeard largeflower speargrass largeflower triteleia large-flowered agoseris large-flowered blue-eyed Mary large-flowered brickellia large-flowered collomia large-flowered daisy large-flowered hemp-nettle large-flowered triteleia largeflowered wintergreen large-fruited desert-parsley large-headed groundsel large-headed sedge largeleaf avens largeleaf lupine largeleaf pondweed largeleaf sandwort large-leaved avens large-leaved lime large-leaved lupine large-leaved pondweed large-leaved rattlesnake orchid large-petalled saxifrage large-seeded goosefoot large-thorned hawthorn large-tooth aspen larkspur larkspurleaf monkshood late cotoneaster late goldenrod late-flowering goosefoot lateral sedge Laurentian woodsia laurustinus lavender lawn marshpennywort lawndaisy lax-flowered bluegrass Laxmann's Milk-vetch leaf arnica leaf mustard leafless wintergreen leafy aster leafy dwarf knotweed leafy mitrewort leafy pondweed leafy spurge leafy thistle least bladdery milk-vetch least duckweed least moonwort least mousetail leatherleaf leatherleaf saxifrage leathery grape fern leathery knotweed leathery polypody ledge stonecrop Leiberg's daisy Leiberg's fleabane Leiberg's waterlily Lemmon's hollyfern Lemmon's Needle Grass Lemmon's needlegrass lemon balm lemon mint lemon thyme lemonweed lentil lentil vetch leopard's bane leporinum barley lesser baby innocence lesser blackscale sedge lesser bladder sedge lesser bladderwort lesser brown sedge lesser burdock lesser cattail lesser celandine lesser chickweed lesser hawkbit lesser knapweed lesser rattlesnake plantain lesser roundleaved orchid lesser saltmarsh sedge lesser spearwort lesser spikemoss lesser swinecress lesser tussock sedge lesser wintergreen lesser yellow lady's slipper lesser-panicled sedge Letterman's bluegrass Lewis Blue Flax Lewis flax Lewis' mock orange Lewiston cornsalad licorice fern Liddon sedge lilac penstemon lilac sage lilacbush limber honeysuckle limber pine limestone maidenhair spleenwort limestone meadow sedge limestone meadow sedge Lindley's aster Lindley's Lupine Lindley's microseris Lindley's silverpuffs Linear-leaf moonwort linearleaf snapdragon linear-leaved daisy Lingbye's Sedge lingonberry little bluestem little buttercup little chickweed little evening-primrose little fescue little grapefern little gray aster little green sedge little grey aster little hogweed little larkspur little lovegrass little meadow-foxtail little medick Little Mountain thimbleweed little oniongrass little prince's pine little quakinggrass little ricegrass little rose little tarweed little western bitter-cress little yellow monkey-flower little yellowrattle littlebells polemonium littleflower penstemon littlefoot nemophila littleleaf bush penstemon littleleaf buttercup littleleaf minerslettuce littleleaf pussytoes littleleaf rockcress littleleaf silverback littlepod false flax littlepod flax littleseed canarygrass littletree willow little-tree willow liverleaf wintergreen livid sedge Lobb's buttercup Lobb's water-buttercup lodgepole pine Loesel's liparis Loesel's tumble-mustard Lombardy poplar long beechfern long pricklyhead poppy long prickly-headed poppy longawn sedge long-beaked willow long-bracted frog orchid long-bracted sedge long-flowered bluebells long-flowered mertensia longhair sedge long-headed anemone longhorn plectritis longhorn steer's-head long-leaf arnica longleaf fleabane longleaf groundcherry longleaf phlox longleaf pondweed longleaf starwort long-leaved daisy long-leaved dock long-leaved fleabane long-leaved hawksbeard long-leaved phlox long-leaved pondweed long-leaved starwort longpod stitchwort longspur lupine long-spurred plectritis longstalk cranesbill longstalk sedge longstalk starwort long-stalked draba long-stalked orache long-stalked pondweed long-stalked starwort long-stalked whitlow-grass longstem sandwort long-stolon sedge long-stoloned sedge longstyle rush long-styled rush long-styled sedge long-tongue mutton grass longtube twinflower looseflower bluegrass looseflower milkvetch lotus milkvetch lotus milk-vetch Louisiana Broomrape love-in-a-mist low baby's breath low bilberry low birch low braya low bulrush low clubrush low goosefoot low hawksbeard low hawksbeard (ssp. modocensis) low hop-clover low northern sedge low pussytoes low sandwort lowland cudweed lowland rotala lucerne Lucile's glory-of-the-snow Lyall's anemone Lyall's angelica Lyall's beardtongue Lyall's goldenweed Lyall's mariposa lily Lyall's penstemon Lyall's phacelia Lyall's saxifrage Lyngbye's Sedge lyre-leaved rockcress MacCalla's willow Mackay's scouring-rush MacKenzie Valley mannagrass Mackenzie willow Mackenzie's sedge Mackenzie's water hemlock MacKenzie's willow Macoun's blue-eyed grass Macoun's buttercup Macoun's draba Macoun's false bindweed Macoun's fringed gentian Macoun's groundsel Macoun's meadow-foam Macoun's Poppy Macoun's whitlow-grass Macoun's wildrye Macrae's clover madrone madwoman's milk madwort Magellan fuchsia Mahaleb cherry mahogany fawnlily maiden blue eyed Mary maiden pink maidenhair spleenwort maidenstears male fern mallow ninebark Maltese Cross Maltese star-thistle Manitoba maple manroot manybranched pepperweed manyflower stickseed manyflower thelopody many-flowered hackelia many-flowered sedge many-flowered stickseed many-flowered thelypody many-flowered wood-rush many-headed sedge Maori dock mapleleaf currant maple-leaved blackcurrant maple-leaved currant maple-leaved goosefoot Mara Lake quillwort marijuana maritime glasswort maritime goldfields maritime quillwort marsh arrrow-grass marsh bedstraw Marsh bedstraw marsh bluegrass marsh cinquefoil marsh cudweed marsh felwort marsh fleabane marsh grass of Parnassus marsh horsetail marsh jaumea marsh Labrador tea marsh muhly marsh pea marsh peavine marsh Scheuchzeria marsh seedbox marsh skullcap marsh speedwell marsh thistle marsh valerian marsh violet marsh willowherb marsh yellow cress marsh-elder marshpepper smartweed Martindale's desert-parsley Martindale's lomatium Martin's fumitory Maryland sanicle mat amaranth mat muhly mat sandbur matrimony vine matted field chickweed matted sandmat Maximilian sunflower Maydell's locoweed Maydell's oxytrope mayweed McCalla's dwarf braya meadow alumroot meadow arnica meadow aster Meadow Barley meadow bird's-foot trefoil meadow birds-foot trefoil meadow brome meadow buttercup meadow cranesbill meadow death-camas meadow fescue meadow foxtail meadow horsetail meadow knapweed meadow larkspur meadow meadow-foxtail meadow nemophila meadow pea meadow peavine meadow salsify meadow saxifrage meadow sedge meadow thistle meadow willow meadow woollyheads meadow zizia meadow-foxtail meadowsweet mealberry mealy primrose Mediterranean barley Mediterranean brome Mediterranean sweetclover medium-flowered winter-cress Menzies' burnet Menzies' campion Menzies' catchfly Menzies' fiddleneck Menzies' Larkspur Menzies' penstemon Menzies' pepperweed Menzies' pipsissewa Menzies' silene Menzies' spirea (ssp. menziesii) Mertens' moss-heather Mertens' mountain-heather Mertens' rush Merten's saxifrage Mertens' sedge Mexican aster Mexican feather grass Mexican hedgenettle Mexican hedge-nettle Mexican Love Grass Mexican lovegrass Mexican mosquito fern Mexican mosquitofern Mexican muhly Mexican poppy Mexican sprangletop Mexican tea Michaux's mugwort Michaux's wormwood Michigan moonwort midget quillwort mile-a-minute weed milk spurge milk thistle milkflower willowherb milkwort knotweed milky draba milky whitlow-grass Mill Creek agoseris miner's-lettuce Mingan moonwort miniature lupine miniature suncup Missouri goldenrod Missouri milk-vetch Mistassini primrose mock strawberry mock-orange mock-pennyroyal Modoc hawksbeard Modoc yellowcress Mojave brickellbush moleplant monardella money plant Monkshood Montana larkspur Montana Lupine Montana lupine (ssp. pseudoparviflorus) Montana wildrye montane stickseed montbretia moor rush moose moonwort mooseberry morning glory Moroccan poppy Morrow's honeysuckle Morton's Canadian milkvetch moschatel mosquito bills moss campion moss gentian moss grass mossgrass Moss's hybrid wheatgrass mossy stonecrop moth mullein mottled hawkweed Mount Hood pussypaws Mount Sheldon butterweed mountain alder mountain arnica mountain bentgrass mountain birch mountain bladder fern mountain bladderfern mountain blue-curls mountain blue-eyed-grass mountain bluet mountain bog gentian mountain brome mountain cliff fern mountain cranberry mountain death-camas mountain fern mountain forget-me-not mountain hairgrass mountain harebell mountain hemlock mountain hemlock dwarf mistletoe mountain holly fern mountain hollyfern mountain hollyhock mountain lady's slipper mountain mare's-tail mountain marsh-marigold mountain monardella mountain monkey-flower mountain monkshood mountain moonwort Mountain Navarretia mountain owl-clover mountain owl's-clover mountain red fescue mountain sagebrush mountain sagewort mountain sandwort mountain sedge mountain sneezeweed mountain snowbells mountain snowberry mountain sorrel mountain sweet-cicely mountain tansymustard mountain tarweed Mountain Wild Mint mountain willow mountainmeadow cinquefoil mountain-moss mountain-range sedge mouse barley mouse barley (ssp. murinum) mouse-ear mouse-ear chickweed mouseear cress mouse-ear hawkweed Mt. Washington bluegrass mud sedge Muhlenberg's centaury multiflora rose Munroe's globe-mallow musk mallow Musk Thistle muskeg lousewort muskflower Musk-flower muskroot musky storks bill mutton grass muttongrass myrtle spurge nagoonberry Nahanni oak fern naked broomrape naked miterwort Naked-stemmed Hawksbeard Nanking cherry narcissus anemone narcissus-flowered anemone narrow beech fern narrow-flowered bluegrass narrowleaf arnica narrow-leaf arnica narrowleaf bur-reed narrowleaf cattail narrowleaf cowwheat narrowleaf hawksbeard narrowleaf hawkweed narrowleaf lupine narrowleaf minerslettuce narrowleaf onion narrowleaf plantain narrowleaf pondweed narrowleaf saw-wort narrowleaf skullcap narrowleaf stoneseed narrowleaf swordfern narrowleaf water plantain narrowleaf water-starwort narrow-leaf willow narrow-leaved birds-foot trefoil narrow-leaved Brickellbush narrow-leaved brickellia narrow-leaved bur-reed narrow-leaved cattail narrow-leaved collomia narrow-leaved cotton-grass narrow-leaved dock narrow-leaved everlasting peavine narrow-leaved goosefoot narrow-leaved hawkweed narrow-leaved knotweed narrow-leaved montia narrow-leaved paintbrush narrow-leaved pygmy pussytoes narrow-leaved ragwort Narrow-leaved Saw-wort narrow-leaved sedge narrow-leaved skullcap narrow-leaved stephanomeria narrow-leaved sword fern narrow-leaved water-plantain narrow-leaved willowherb narrowpanicle rush narrow-petal stonecrop narrow-petaled stonecrop narrowsepal phacelia narrow-sepaled phacelia narrow-winged water-starwort near navarretia neat spikerush neckweed needle and thread needle beaksedge needle spikerush needle spike-rush needle-and-thread grass needleleaf navarretia needleleaf sedge needle-leaved navarretia Nelson's needlegrass Nelson's oxytrope Nelson's tansymustard Nepalese knotweed netleaf willow net-leaved willow nettleleaf giant hyssop nettle-leaved bellflower nettle-leaved giant-hyssop nettle-leaved goosefoot nettle-leaved mullein net-veined willow Nevada bluegrass Nevada bluegrass (ssp. juncifolia) Nevada bulrush Nevada clubrush Nevada marsh fern New England aster New England hawkweed New York aster New Zealand bittercress Newcombe's butterweed Niger seed night-flowering catchfly nightflowering silene nineleaf biscuitroot nine-leaved desert-parsley nipple spike-rush nipplewort no common name nodding arnica nodding beggarticks nodding campion nodding catchfly nodding chickweed nodding hackelia nodding locoweed nodding microceris nodding microseris Nodding Onion nodding plumeless thistle nodding saxifrage nodding semaphoregrass nodding stickseed nodding thistle nodding trisetum nodding waternymph nodding wood-reed Nootka alkaligrass Nootka lupine Nootka rose Nootka wintergreen North Africa grass North American moonwort North Pacific draba northern adderstongue northern adder's-tongue northern anemone northern arnica northern asphodel northern bedstraw northern bentgrass northern black currant northern blackcurrant northern blue grass northern bluebells northern blue-eyed grass northern blue-eyed-grass northern bluegrass northern bog bedstraw northern bog sedge northern bog St. John's-wort northern bog violet northern bugleweed northern bur-reed northern bush willow northern buttercup northern butterweed northern cluster sedge northern clustered sedge northern comandra northern crane's-bill northern daisy northern draba northern fairy-candelabra northern false asphodel northern fescue northern field bitter-cress northern fir-moss northern flaxflower northern gentian northern geranium northern golden saxifrage northern goldenrod northern golden-saxifrage northern gooseberry northern grass-of-Parnassus northern green bog orchid northern green orchid northern green rein orchid northern green rush northern groundcone northern groundsel northern hedysarum northern hemlock-parsley northern holly fern northern hollyfern northern hound's-tongue northern Jacob's-ladder northern Labrador tea northern lady's-slipper northern linanthus northern maiden-hair northern mannagrass Northern Marsh Violet northern moonwort northern paintbrush Northern Pitcher Plant northern pondweed northern pussytoes northern red oak northern reedgrass northern riceroot northern rice-root northern rough fescue northern ryegrass northern sandwort northern sanicle northern sawwort northern scouring-rush northern sedge northern selaginella northern shootingstar northern singlespike sedge northern smooth gooseberry northern St. Johnswort Northern Starflower northern starwort Northern Stickseed northern swamp willowherb northern sweetgrass northern sweet-vetch northern tansy mustard northern tansymustard northern twayblade northern violet northern water horehound northern water plantain northern watermeal northern water-meal northern water-starwort northern whitlow-grass northern wild-licorice northern woodrush northern wood-rush northern wormwood northland cottonsedge northwest coast quillwort northwest sandbar willow Northwest Territory sedge northwestern monkey-flower northwestern moonwort northwestern sedge northwestern twayblade northwestern white birch Norton's St. Johnswort Norway maple Norwegian cinquefoil Nuttall's alkaligrass Nuttall's draba Nuttall's knotweed Nuttall's little rose Nuttall's oxytrope Nuttall's pussytoes Nuttall's Quillwort Nuttall's rockcress Nuttall's sandwort Nuttall's Stitchwort Nuttall's Sunflower Nuttall's toothwort Nuttall's waterweed Nuttall's whitlow-grass Nutzotin milkvetch Nutzotin milk-vetch oak fern Oakes' evening primrose oak-leaved goosefoot oblong bluecurls oblongleaf orache oblong-leaved bluebells oblong-leaved orache obscure cryptantha obscure goosefoot obscure willowherb obscure willow-herb obtuse sedge oceanspray ochroleucous bladderwort Oeder's lousewort official burnet Ogotoruk Creek butterweed Okanagan hawthorn Okanogan fameflower Okanogan hackelia Okanogan stickseed Okanogan talinum O'Kennon's hawthorn old man's whiskers old-man-in-the-Spring oldstem idahoa Olney's bulrush Olympic mountain aster Olympic Mountain willowherb Olympic mountains draba Olympic onion one-and-a-half flowered reedgrass one-cone clubmoss oneflower fleabane oneflower helianthella one-flower oxytrope One-flower oxytrope One-flowered Fleabane one-flowered little sunflower one-flowered wintergreen one-headed pussytoes oneleaf foamflower one-leaved foamflower one-leaved foamflower (var. unifoliata) one-leaved malaxis one-leaved rein orchid one-rowed watercress oneseed hawthorn one-sided sedge one-sided wintergreen onespike danthonia one-spike oatgrass oniongrass Ontario lobelia opium poppy orange agoseris orange arnica orange balsam orange cotoneaster orange cotoneaster orange eye butterflybush Orange False Dandelion orange honeysuckle orange mullein orange mushroom pimple orange touch-me-not orange-red king devil orchard grass orchardgrass orchard-grass Orcutt's lovegrass oregano Oregon ash Oregon bentgrass Oregon boxleaf Oregon checkerbloom Oregon checker-mallow Oregon cliff fern Oregon crabapple Oregon drops of gold Oregon gumweed Oregon Lupine Oregon maple Oregon stonecrop Oregon white oak Oregon willowherb Oregon wintergreen Oriental false wheatgrass Oriental knight's-spur Oriental Poppy ornamental jewelweed ornamental reed canarygrass osoberry ostrich fern oval-leaf blueberry oval-leaf knotweed oval-leaf milkweed oval-leaved blueberry oval-leaved knotweed oval-leaved mitrewort oval-leaved penstemon ovalpurse ovate spikerush Over's goosefoot owlfruit sedge Owyhee mudwort oxeye daisy oyster plant oysterleaf Ozette coralroot Pacific alkaligrass Pacific anemone Pacific beach strawberry Pacific blacksnakeroot Pacific bleeding heart Pacific brome Pacific bugseed Pacific coast strawberry Pacific coralroot Pacific crab apple Pacific dogwood Pacific fescue Pacific fir-moss Pacific golden dock Pacific hemlockparsley Pacific hemlock-parsley Pacific lupine Pacific madrone Pacific mosquitofern Pacific ninebark Pacific Northwest hybrid strawberry Pacific oakfern Pacific poison oak Pacific popcornflower Pacific reedgrass Pacific rhododendron Pacific sanicle Pacific sanicle Pacific silver fir Pacific silverweed Pacific soft rush Pacific stonecrop Pacific trailing blackberry Pacific trillium Pacific waterleaf Pacific water-parsley Pacific willow Pacific willow dock Pacific woodrush Pacific wood-rush Pacific yew pahute weed Paintbrush paintbrush owl-clover Palander's draba Palander's whitlow-grass pale agoseris pale alyssum pale bellflower pale bulrush pale comandra pale comandra (var. pallida) pale evening primrose pale evening-primrose pale false mannagrass pale flax pale fleabane pale gentian pale greenish paintbrush pale madwort pale meadow sedge pale moonwort pale poppy pale pussytoes pale Saint John's wort pale sedge pale spike-rush pale springbeauty pale yellow jewelweed paleyellow iris paleyellow ragwort paleyellow touch-me-not Pallas' Bugseed Pallas' wallflower pallid claytonia Pallid claytonia palmate coltsfoot palmate toothwort pampas lily-of-the-valley panic veldt grass panicled aster panicled bulrush panicled mertensia paper birch paradise apple parrot's feather Parry's arnica Parry's aster Parry's campion Parry's catchfly Parry's rush Parry's sedge Parry's silene Parry's Townsend daisy Parry's townsendia parsley fern parsnipflower buckwheat parsnip-flowered buckwheat partridgefoot partridge-foot pasture sedge pathfinder patience dock Patterson's bluegrass Payson's sedge peach peachleaf bellflower peachleaf willow peach-leaf willow peach-leaved bellflower peafruit rose Peak Saxifrage peanut pearly everlasting Peck's sedge peculiar moonwort peduncled sedge pendantgrass pendant-pod locoweed pendent-pod locoweed pendulous sedge Pennell's lousewort Pennsylvania buttercup Pennsylvania Cinquefoil Pennsylvania everlasting Pennsylvania pellitory Pennsylvania smartweed Pennsylvanian bitter-cress Pennsylvanian cinquefoil pennyroyal peppermint perennial cornflower perennial pea perennial ryegrass perennial saltwort perennial sow-thistle perennial sundrops Persian ryegrass Persian Walnut Peruvian groundcherry petaloid pussytoes petty spurge phantom orchid Philadelphia daisy Philadelphia fleabane Phipps' hawthorn pickerelweed Piedmont-bedstraw piggy-back plant pigmyweed pimpernel willowherb pin cherry pincushion beardtongue pincushion plant pine barren flatsedge pine broomrape pineapple weed pinedrops pinegrass pineneedle toadflax pinesap pinewood peavine pink agoseris pink campion pink corydalis pink fairies pink fawn lily pink gaura pink honeysuckle pink micromeria pink monkey-flower pink mountainheath pink mountain-heather pink rock-rose pink sand-verbena pink spirea pink twink pink water speedwell pink wintergreen pink woodsorrel pinkfairies pin-leaf seepweed pinyon goosefoot pinyon groundsmoke pioneer violet Piper's anemone Piper's golden buckwheat Piper's wood-rush pipestems pipsissewa pitseed goosefoot plains cottonwood plains eryngo plains evening-primrose plains mustard plains reedgrass plane-leaved willow plantainleaf buttercup plantain-leaved leopard's-bane platterful mushroom pleated gentian plumeless thistle plumleaf crabapple poached egg plant Poet's Narcissus pointed broom sedge pointed rush pointedtip mariposa lily pointing suncress poison hemlock poison ivy poison oak poison parsley poison-hemlock poker alumroot polar bluegrass Polar Grass polar sedge polar willow polargrass policeman's helmet pond water-starwort ponderosa pine poor sedge porcupine sedge porcupinegrass Porsild's draba Porsild's dwarf braya Porsild's whitlow-grass Porter's brome Portugal laurel Portuguese broom pot marigold potato poverty brome poverty clover poverty dropseed poverty grass poverty oatgrass poverty rush poverty weed povertyweed poverty-weed Powell's amaranth prairie agoseris prairie burnet prairie buttercup prairie cinquefoil prairie coneflower prairie cordgrass prairie crocus prairie fleabane prairie gentian prairie golden bean prairie Junegrass prairie lupine prairie milkvetch prairie pepper-grass prairie plantain prairie rocket prairie rose prairie sagewort Prairie Sand Grass Prairie Sand Reed prairie sandgrass prairie sandreed prairie sand-reed prairie sedge prairie smoke prairie sunflower prairie thermopsis prairie threeawn Prairie Wedgegrass prairie wedgescale prairie woodrush Presl's sedge pretty cinquefoil pretty oxytrope pretty shootingstar prickly comfrey prickly cucumber prickly currant prickly lettuce prickly phlox prickly rose prickly sow-thistle prickly wild rose Priest Lake tofieldia prince's feather prince's pine princess feather proliferous knotweed proliferous pink prolific petrorhagia prostrate knotweed prostrate pigweed prostrate tumbleweed pseudoviviparous fescue ptarmigan club-moss pubescent western needlegrass puckered-leaved cotoneaster puffsheath dropseed Puget Sound gumweed pullup muhly pull-up muhly pulse milk-vetch pulvinate pussytoes Pumpelly brome puncture vine puncturevine purple amaranth purple arnica purple avens purple blue-eyed-grass (var. inflatum) purple butter-bur purple cudweed purple cushion fleabane purple daisy purple deadnettle purple dead-nettle purple dragonhead purple foxglove purple loosestrife purple marshlocks purple meadowrue purple meadow-rue purple milkvetch purple moor grass purple mountain saxifrage purple oniongrass purple peavine purple pitcherplant purple rattlesnakeroot purple rattlesnake-root Purple Reed Grass purple reedgrass purple sanicle purple sneezeweed purple spike-rush purple sweet-cicely purple sweetroot purple threeawn purple toadflax purple virgin's-bower purple wildrye purple willow purpleanther field pepperweed purple-haired groundsel Purple-leaved Willowherb purple-marked yellow violet purplestem beggarticks Purple-stemmed Aster purple-stemmed monkey-flower Pursh seepweed Pursh's wallflower purslane speedwell pussy willow pygmy buttercup pygmy gentian pygmy pussytoes pygmy saxifrage pygmy waterlily pygmyflower rockjasmine Pylae rush pyramid spirea Pyrenean sedge quackgrass quaking aspen quaking grass Queen Anne's lace Queen Charlotte avens Queen Charlotte butterweed Queen Charlotte false rue-anemone Queen Charlotte isopyrum Queen Charlotte twinflower violet queen's cup queen's-veil maiden fern quill cryptantha quill sedge quill spikerush quince rabbitbrush goldenweed rabbitbush rabbitfoot clover rabbitfoot polypogon raceme pussytoes racemed groundsmoke racemose pussytoes Rainier draba Rainier pleated gentian Rambler rose rampion bellflower rannoch-rush rape rattail fescue rat-tail fescue Rattle milk-vetch rattlesnake brome rattlesnake chess rattlesnake fern rattlesnake grass rattlesnake mannagrass rattlesnake-grass rattlesnake-plantain Raup's paintbrush Raup's willow rayless alkali aster rayless alpine butterweed rayless mountain butterweed Raynolds' sedge red alder red baneberry red birch red brome red campion red catchfly red clover red columbine red currant red duckweed red elderberry red fescue red fruit bearberry red glasswort red goosefoot red honeysuckle red huckleberry red maids red maple red mint red monkswort red orache Red Raspberry red sandspurry red sand-spurry red starthistle red swamp currant red swampfire red three-awn red twinberry red valerian red windflower redflower currant red-flowering currant red-osier dogwood redroot amaranth redroot flatsedge red-rooted cyperus red-seeded dandelion redsepal evening-primrose red-sepaled evening-primrose redstem ceanothus redstem saxifrage redstem springbeauty redstem stork's bill redstem wormwood red-stemmed cinquefoil red-stemmed saxifrage redtop Redtop Panic Grass redtop panicgrass red-veined dock redwood sorrel redwood-sorrel redwool plantain reed canarygrass reed mannagrass reflexed stonecrop Regel's rush resin birch retrorse sedge reversed clover rhexia-leaved paintbrush rhombic-leaved sunflower rhubarb ribbonleaf pondweed ribbon-leaf pondweed ribwort plantain rice cutgrass riceroot fritillary Richardson's alumroot Richardson's Beardtongue Richardson's brome Richardson's crane's-bill Richardson's geranium Richardson's needlegrass Richardson's penstemon Richardson's pondweed Richardson's sedge Richardson's tansy mustard Richardson's tansymustard Richardson's willow rigid sunflower rillita pellitory rip-gut brome river bulrush riverbank anemone riverbank grape riverbank lupine rivergrass roadside agrimony roadside pepperweed Robbins' milk-vetch Robbin's pondweed Robert geranium Robert's geranium Roche spruce rock broom rock cotoneaster rock cranberry rock cress rock fescue rock sandwort rock sedge rock selaginella rock soapwort rock stonecrop Rock Whitlow-grass rock willow rockdwelling sedge rock-dwelling sedge rocket larkspur rocketsalad rockjasmine buckwheat rockspray cotoneaster rockweed brush rocky ledge penstemon Rocky Mountain aster Rocky Mountain bee plant Rocky Mountain butterweed Rocky Mountain chickweed Rocky Mountain clubrush Rocky Mountain Douglas-fir Rocky Mountain draba Rocky Mountain fescue Rocky Mountain goldenrod Rocky Mountain goosefoot Rocky Mountain helianthella Rocky Mountain iris Rocky Mountain juniper Rocky Mountain maple Rocky Mountain ponderosa pine Rocky Mountain pond-lily Rocky Mountain pussytoes Rocky Mountain sandwort Rocky Mountain whitlow-grass Rocky Mountain willow Rocky Mountain willowherb Rocky Mountain woodsia Rocky Moutain fescue rocky ragwort Roemer's Fescue Rolland's bulrush rooted poppy rose acacia rose campion Rose Chamaehodos rose locust rose meadowsweet rose spirea Rose Twisted-stalk Rose-of-Sharon roseroot Ross' Avens Ross's sedge rosy gilia rosy owl-clover rosy owl's-clover rosy plectritis rosy pussytoes rosy twistedstalk rough barnyardgrass rough bentgrass rough bluegrass rough bugleweed rough chervil rough cinquefoil rough cockleburr rough comfrey rough dropseed rough false pennyroyal rough fescue rough fesuce rough hawksbeard rough horsetail rough pennyroyal rough pigweed Rough Popcorn Flower rough water horehound roughfruit berry roughfruit fairybells rough-fruited fairybells roughleaf ricegrass rough-leaved aster rough-leaved ricegrass rough-stemmed daisy rough-stemmed fleabane rough-stemmed goldenrod roundfruit rush roundleaf alumroot roundleaf cancerwort roundleaf orchid roundleaf sundew round-leaved alumroot round-leaved hawthorn round-leaved orchis round-leaved sundew round-leaved violet rowan royal rein orchid rue-leaved saxifrage rufous woodrush rugosa rose Rugosa rose running clubmoss running club-moss rush aster rush pussytoes rush skeletonplant rush skeletonweed rushlike skeleton-plant russet buffaloberry russet sedge Russian comfrey Russian knapweed Russian milkvetch Russian olive Russian orache Russian pigweed Russian sage Russian sickle milk-vetch Russian thistle Russian water-milfoil Russian wildrye rusty cliff fern rusty menziesia rusty wood-rush rusty woodsia rusty-haired saxifrage Rydberg's arnica Rydberg's spring beauty rye rye brome ryegrass sedge sacred thorn-apple safflower sage willow sagebrush buttercup Sagebrush Mariposa Lily sagebrush violet sageleaf willow sage-leaf willow sago pondweed sainfoin saintfoin salad burnet salal salebrosa goldenrod saline orache saline plantain Salish daisy Salmonberry salsify salt marsh dodder salt marsh Philadelphia fleabane salt marsh sand-spurry salt marsh starwort salt meadowgrass salt sandspurry salt sedge saltgrass Saltmarsh Sandspurry saltmarsh starwort saltmeadow cordgrass saltmeadow rush saltwater cress sand bittercress sand clover sand dropseed sand fringepod sand lacepod sand leek sand plantain Sand Pygmyweed sand reed sand ricegrass Sand Violet sandbar willow Sandberg bluegrass Sandberg's biscuitroot Sandberg's bluegrass Sandberg's desert-parsley sandberry Sandcarpet sanddune sedge sand-dune sedge sand-dune wheatgrass sand-dwelling wallflower sandmat sand-reed Sanicle Santa Barbara milkvetch Sartwell's Sedge saskatoon Saskatoon serviceberry satin grass satinflower Saunder's wildrye Sawatch knotweed sawbeak sedge saw-leaved sedge sawtooth speedwell saxifrage pink scalepod scalloped moonwort Scamman's locoweed Scamman's oxytrope Scandinavian sedge scarlet ammannia scarlet firethorn scarlet gaura scarlet gilia scarlet globemallow scarlet globe-mallow scarlet paintbrush Scarlet Pimperel scentbottle scentless mayweed scheuchzeria Scheuchzer's cotton-grass Scotch broom Scotch cottonthistle Scotch false asphodel Scotch heather Scotch Lovage Scotch thistle Scot's broom Scots pine Scottish broom Scottish licorice-root Scouler's campion Scouler's catchfly Scouler's corydalis Scouler's fumewort Scouler's harebell Scouler's hawkweed Scouler's popcornflower Scouler's St. Johnswort Scouler's surf-grass Scouler's valerian Scouler's willow scouring-rush scouringrush horsetail scrabrous black sedge scrambled eggs scratchgrass scree cinquefoil Scribner's rosette grass Scribner's wildrye Scribner's witchgrass scrub birch scurvy-grass sea bluebells sea blush Sea Lyme Grass sea milkwort sea pea sea plantain sea vetchling seabeach sandwort Sea-beach Sandwort seaberry seablite seabluff catchfly seacoast angelica seacoast bulrush seagreen barley seagreen barley (ssp. glaucum) sea-lungwort sea-mertensia sea-milkwort sea-pink seaport goosefoot seashore bentgrass seashore bluegrass seashore false bindweed seashore lupine seashore plantain seashore saltgrass seashore saltgrass (var. spicata) seaside arrowgrass seaside arrow-grass seaside barley seaside bird's foot lotus seaside bittercress seaside fiddleneck seaside goldfields seaside juniper Seaside juniper Seaside Plantain seaside ragwort seaside rein orchid seaside sandplant sea-watch seawrack Secund red fescue sedge mousetail seep monkey-flower seep-spring arnica self-heal Selkirk's violet Seneca snakeroot Seneca-snakeroot serpentine springbeauty serrulate penstemon Serrulated Surfgrass serviceberry willow sessile-leaved sandbar willow Setchell's willow shady woodsorrel shaggy daisy Shaggy Fleabane shaggy galinsoga shaggy soldier Shaggy Vetch sharpleaf cancerwort sharp-leaved fluellen sharp-pod peppergrass sharptooth angelica Shasta buckwheat Shasta daisy shaved sedge sheathed cotton-grass Sheathed Dropseed sheathed pondweed sheathed sedge sheathing pondweed Sheep Cinquefoil sheep fescue sheep sedge sheep sorrel sheepbit Sheila Phipps' hawthorn shepherd's cress shepherd's purse shining geranium shining penstemon shining starwort shinleaf shiny chickweed shiny cotoneaster Shiny cotoneaster shiny rush shoo-fly plant shore blue-eyed-grass shore buttercup shore horsetail shore pine shore pine dwarf mistletoe shore sedge short bluegrass short woollyheads short-anthered cotton-grass shortawn foxtail short-awned porcupinegrass short-awned ricegrass shortbeak sedge Short-beaked Agoseris short-beaked fen sedge short-beaked sedge shortbristle needle and thread shortcoal bluegrass short-flowered evening-primrose short-flowered monkey-flower short-fringed knapweed shortfruit willow short-fruited smelowskia short-fruited tansymustard short-fruited willow shorthair goldenrod short-leaved Sedge short-rayed aster short-scaled sedge short-seeded waterwort shortspike watermilfoil short-spike wildrye shortspur seablush shortstalk false bindweed shortstalk sedge short-stalked wood-rush short-stemmed sedge short-styled thistle short-tailed rush shorttooth Canadian milkvetch showy aster showy daisy Showy Jacob's-ladder showy locoweed showy milkweed Showy Phlox showy pussytoes showy sedge Shrubby Cinquefoil Shrubby Penstemon Shuswap hawthorn shy gilia shy monkey-flower shy wallflower sibbaldia Siberian alder Siberian aster Siberian bitter-cress Siberian bog sedge Siberian crab apple Siberian elm Siberian geranium Siberian iris Siberian kobresia Siberian miner's-lettuce Siberian peashrub Siberian plantain Siberian polypody Siberian spikemoss Siberian springbeauty Siberian squill Siberian water-milfoil Siberian wheatgrass Siberian wildrye Siberian yarrow sickle-leaved rush sickletop lousewort sidebells wintergreen Sierra bog orchid Sierra larkspur Sierra marsh fern Sierra pea Sierra rush Sierra sanicle Sierrra shootingstar silky beach pea silky locoweed silky lupine silky oxytrope silky phacelia silver birch silver buffaloberry silver burr ragweed silver burweed silver cinquefoil silver dollar silver hairgrass silver lace vine silver maple silver saltbush silver suncrest silverback luina silverberry silvercrown silverleaf phacelia silverscale saltbush silvertop sedge silverweed silvery cinquefoil silvery lupine Silvery Orache silvery primrose silvery sedge silvery-brown pussytoes Simons' cotoneaster simple bog sedge simple campion simple cliff-brake simple kobresia single delight single-spike sedge Sitka alder Sitka burnet Sitka columbine Sitka mistmaiden Sitka mountain ash Sitka mountain-ash Sitka parsley fern Sitka rockbrake Sitka romanzoffia Sitka sedge Sitka spruce Sitka starwort Sitka valerian Sitka willow sixweeks fescue six-weeks fescue six-weeks grass skeleton-weed skullcap speedwell skunk cabbage skunk currant skunk Jacob's-ladder skunk polemonium skunkbush skunkweed sky lupine sky pilot Skye horsetail sleeping combseed sleeping popcornflower sleepy catchfly sleepy silene sleepydick slender arnica slender arrowgrass slender blue penstemon slender bog orchid slender cinquefoil slender collomia slender cottongrass slender cotton-grass slender cudweed slender draba slender false brome slender fringecup slender gentian slender gilia slender grasswort slender hairgrass Slender Hawksbeard slender hawkweed slender lipfern slender mannagrass slender meadow foxtail Slender Mountain Sandwort slender muhly slender parsley piert slender penstemon slender plantain slender popcornflower slender red hawthorn slender rein orchid slender rock-brake slender rush slender Russian thistle slender sandwort slender saxifrage slender sedge slender speedwell slender spikerush Slender spike-rush slender tarweed slender toothwort Slender Vetch slender wedgegrass slender wedgescale slender wheatgrass slender whitlow-grass slender wild oat slender woodland star slender woodland-star slender woollyheads slender woolly-heads slenderbeak sedge slender-beaked sedge slenderfruit willowherb slenderleaf sundew slender-leaf sundew slenderleaf sundew slender-leaved pondweed slender-spiked mannagrass slime-leaf wallrocket slimleaf onion Slimpod slimpod shootingstar slimstem reedgrass slippery elm sloe sloppy suncress slough sedge small balsam small bedstraw small blacktip ragwort small bluebells small bog orchid small bugloss small burnet small bur-reed small bur-reedl small camas small Canadian St. John's-wort small enchanter's nightshade small fescue small filago small floating mannagrass small flowered sage small geranium small hop-clover small mallow small pondweed small quaking grass small saxifrage small spike-rush small tarweed small touch-me-not small tumbleweed mustard small twistedstalk small wallflower small white violet small white waterlily small yellow foxglove small yellow water-buttercup smallawned sedge small-awned sedge small-bracted sedge smallflower columbine smallflower fescue smallflower hairy willowherb smallflower halfchaff sedge smallflower lousewort smallflower lupine smallflower nemophila small-flower prairie wallflower small-flower prairie wallflower smallflower touchmenot smallflower woodland-star small-flowered alumroot smallflowered anemone Small-flowered Birds-foot Trefoil Small-flowered Bittercress small-flowered bitter-cress small-flowered blue-eyed Mary small-flowered bulrush small-flowered buttercup small-flowered catchfly small-flowered crane's-bill small-flowered evening star small-flowered fiddleneck small-flowered forget-me-not small-flowered fringecup small-flowered galinsoga small-flowered geranium small-flowered godetia small-flowered grass-of-Parnassus small-flowered hairy willow-herb small-flowered half chaff sedge small-flowered ipomopsis small-flowered lipocarpha small-flowered lousewort small-flowered lupine small-flowered mallow small-flowered morning glory small-flowered nemophila small-flowered paintbrush Small-flowered Pearlwort small-flowered penstemon small-flowered ricegrass small-flowered rocket small-flowered skullcap small-flowered tonella small-flowered willowherb small-flowered woodland star smallflowered woodrush small-flowered wood-rush small-fruit willow small-fruited parsley-piert small-fruited willowherb smallhead arnica smallhead clover small-headed clover small-headed tarweed small-leaf bentgrass small-leaf pussytoes small-leaved bentgrass small-leaved monkey-flower small-leaved montia smallwing sedge small-winged sedge Smith's fairybells Smith's melic Smith's melicgrass Smith's pepper-grass Smith's willowherb smooth alumroot smooth aster smooth barley smooth black sedge smooth blue aster smooth brome smooth catsear smooth cat's-ear smooth cliff fern smooth cliffbrake smooth crabgrass smooth daisy smooth douglasia smooth draba Smooth Fleabane smooth fringecup smooth goldenrod smooth goldfields smooth goosefoot smooth hawksbeard smooth hawkweed smooth horsetail smooth northern-rockcress smooth rattle smooth rupturewort smooth scouring-rush smooth spike-primrose smooth sumac smooth whitlow-grass smooth willowherb smooth witchgrass smooth woodland star smooth woodsia smooth-leaved honeysuckle smoothstem blazingstar smoothstem sedge smooth-stemmed sedge snake-root snake-root sanicle sneezeweed snow arnica snow bramble snow buckwheat snow buttercup snow cinquefoil snow dewberry snow draba snow fleabane snow grass snow in summer snow on the mountain snow pear snow pearlwort snow raspberry snow whitlow-grass snow willow snowbed draba snowbrush snowbrush ceanothus snow-in-summer snowline wintergreen soapberry soapwort soft brome soft chess soft rush softleaf sedge soft-leaved sedge soft-leaved willow softstem bulrush soft-stemmed bulrush Soft-stemmed Spike-rush soopolallie sour clover South American waterweed southern maiden-hair southern milk-vetch southern suncup southwestern waterwort Spalding's campion Spalding's milkvetch Spalding's silene Spanish bluebells Spanish broom Spanish stonecrop Spanish-clover sparrow's-egg lady's-slipper sparseflower sedge sparse-flowered sedge spathulate botrychium spatterdock spatulaleaf loosestrife spear saltbush spear-fruited draba spearleaf arnica spearleaf stonecrop spear-leaved fleabane spearmint Speckled Alder Spider Saxifrage spider-flower spike bentgrass spike sedge spike trisetum spiked muhly spiked woodrush spiked wood-rush spikelike goldenrod spikenard sedge spike-oat spineless hornwort spineless horsebrush spinulose woodfern spiny cocklebur spiny plumeless thistle spiny sowthistle spiny wood fern spiny-spore quillwort spiral ditchgrass spiral ditch-grass spleenwort-leaved goldthread splitawn sedge splitlip hempnettle split-lip hemp-nettle spoon-shaped moonwort spoonwort spotted coralroot spotted cowbane spotted hawkweed spotted henbit spotted jewelweed spotted Joe-pye-weed spotted knapweed spotted loosestrife spotted medic spotted medick spotted saxifrage spotted St. John's-wort spotted touch-me-not spotted water hemlock spreading arctic sedge spreading bluegrass spreading cotoneaster spreading dogbane spreading fleabane spreading gooseberry Spreading Groundsmoke spreading hackelia spreading hedgeparsley spreading hedge-parsley spreading minerslettuce spreading needlegrass Spreading Phlox spreading rush spreading stickseed spreading stonecrop spreading wallflower spreading wood fern spreading woodfern Sprengel's sedge spring crocus spring draba spring forget-me-not spring gold spring gooseberry spring hornwort spring speedwell Spring Vetch spring water-starwort springbank clover sprouting leaf willow spurgelaurel spurge-laurel spurless touch-me-not spurred gentian spurred lupine spurry knotweed Square-stemmed Willowherb square-stemmed willow-herb squarrose brome squashberry squirreltail squirreltail grass St. Anthony's turnip staggerweed staghorn cinquefoil staghorn sumac stalked adder's tongue stalked birds-foot trefoil stalked moonwort stalked-pod locoweed stalk-leaved monkey-flower stalkpod locoweed standing milk-vetch Standley's selaginella star duckweed Star Peak fleabane star sedge starch grape hyacinth starflower star-flowered draba star-flowered false Solomon's-seal star-flowered whitlow-grass star-of-Bethlehem starry false lily of the valley steer's head Stern's cotoneaster Steven's spirea stickwort sticky chickweed sticky cinquefoil sticky cockle sticky cudweed sticky currant sticky false asphodel Sticky Geranium sticky Jacob's-ladder sticky polemonium sticky purple crane's-bill sticky purple geranium sticky ragwort sticky sandspurry sticky tofieldia stickystem pearlwort stickywilly stiff clubmoss stiff club-moss stiff eyebright stiff needlegrass stiff sedge stiff-leaved pondweed stinging nettle stink currant stinkgrass stinking chamomile stinking hellebore stinking nightshade stinking-clover stock stoloniferous pussytoes stoloniferous saxifrage Stork's-bill Straggly Gooseberry straightbeak buttercup straight-beaked buttercup straight-up suncress strapwort straw foxglove strawberry clover strawberry-blite strawberryleaf raspberry strawberry-tomato straw-coloured flatsedge stream currant stream orchid stream saxifrage stream violet streambank arnica streambank butterweed streambank clubrush streambank globe-mallow Streambank Groundsel streambank lupine Streambank Spring Beauty streambank springbeauty streambank wheatgrass streambank wild hollyhock streamside fleabane stretching suncress strict blue-eyed grass strict forget-me-not string sedge striped coralroot subalpine buttercup subalpine daisy subalpine fir subalpine fleabane subalpine larch subalpine lupine subalpine spirea subterranean clover suckling clover Sudetan lousewort Sudeten lousewort sudetic lousewort sugar beet sugarstick Suksdorf's bluegrass Suksdorf's broomrape Suksdorf's buttercup Suksdorf's large camas Suksdorf's lupine Suksdorf's monkey-flower Suksdorf's mugwort Suksdorf's spike-rush sulphur buckwheat sulphur buttercup sulphur cinquefoil sulphur hedysarum sulphur lupine sulphur paintbrush sulphur sweet-vetch sulphur-flower buckwheat summer coralroot summer lupine summer spurge summer-cypress sun sedge supine bluegrass Sutherland's larkspur swale desert-parsley swallowwort swamp birch swamp gentian swamp hedge-nettle swamp horsetail swamp lantern swamp laurel swamp smartweed swamp verbena swamp willowherb Swan's sedge swaying bulrush Swedish goosefoot Swedish whitebeam sweet after death sweet alyssum sweet cherry sweet cicely sweet coltsfoot sweet fennel sweet gale sweet rocket sweet sagewort sweet sultan sweet vernalgrass sweet violet sweet William sweet William catchfly sweet woodruff sweet-amber sweetbrier sweetcicely sweetflag sweet-flowered fairy-candelabra sweetgale sweet-marsh butterweed sweetscented bedstraw sweet-scented bedstraw sweetwilliam swollen beaked sedge sword fern swordleaf rush sycamore maple Tahoe sedge Tahoe sedge Taimyr campion Taimyr catchfly tall alumroot tall ambrosia tall annual willowherb tall beggarticks tall blue lettuce tall bluebells tall blueberry willow tall boneset tall bugbane tall buttercup tall centaury Tall Cinquefoil Tall Coneflower tall cottongrass tall draba tall fescue tall flatsedge tall globethistle tall groundsel tall hairy agrimony tall hawkweed tall Jacob's-ladder tall larkspur tall mannagrass tall morning-glory tall mountain arnica tall mountain shootingstar tall oatgrass tall Oregon-grape tall pepper-grass tall rein orchid Tall Scouring-rush tall thimbleweed tall trisetum tall tumblemustard tall tumble-mustard tall verbena tall wheatgrass tall whitlow-grass tall wood beauty tall woolly-heads talus willowherb tamarack tansy cinquefoil tansy ragwort tapered rosette grass tapered rush taper-tip flatsedge tapertip onion tapertip rush tarragon tarweed fiddleneck tasselflower brickellbush Tatarian honeysuckle Tatary buckwheat tawny cottongrass tawny cotton-grass Taylor's draba Taylor's Saxifrage TBD tea crabapple teacher's sedge tealeaf willow tea-leaved willow teff tender sedge terrestrial water-starwort Texas toadflax Thale cress The Dalles milk-vetch thickhead sedge thick-headed sedge thick-leaved starwort thick-leaved thelypody thick-leaved thelypody (var. laciniatum) thickspike wheatgrass thickspike wildrye thimble clover Thimbleberry thingrass thinleaf alder thinleaf cottonsedge thinleaf huckleberry thinleaf orach thinleaf orache thin-leaved bedstraw thin-leaved owl-clover thinleaved owl's-clover Thompson's paintbrush Thompson's woodland-star thorny buffalo-berry thoroughwort thread rush threadleaf coreopsis threadleaf fleabane threadleaf phacelia threadleaf sedge thread-leaved daisy thread-leaved fleabane thread-leaved phacelia thread-leaved sandwort thread-leaved sedge threadstalk milk-vetch threadstalk speedwell three toothed saxifrage threeflower rush three-flowered rush three-flowered waterwort three-forked mugwort threeleaf false lily of the valley threeleaf foamflower threeleaf goldthread threeleaf lewisia three-leaved false Solomon's-seal three-leaved foamflower three-leaved foamflower (var. trifoliata) three-leaved goldthread three-leaved lewisia threelobe beggarticks three-lobed daisy three-parted beggarticks three-parted Pacific sanicle threepetal bedstraw three-seeded sedge three-spot mariposa lily threetip sagebrush three-toothed mitrewort three-toothed saxifrage threeway sedge three-way sedge thrift thrift seapink Thurber's needlegrass thyme dodder thymeleaf dragonhead thymeleaf sandmat thymeleaf sandwort thymeleaf saxifrage thymeleaf speedwell thyme-leaved sandwort thyme-leaved saxifrage thyme-leaved speedwell thyme-leaved spurge tiger lily Tilesius' wormwood Tiling's monkeyflower timber milkvetch timber milk-vetch timber oatgrass timberline bluegrass timothy tinker's penny tiny bedstraw tiny mousetail tiny suncress tiny trumpet Tiny Vetch Tisch's saxifrage toad rush tobacco tobacco root Tolmie's penstemon Tolmie's saxifrage tomatillo Tomatillo tomato tomcat clover tomentose mountain-avens toothcup meadow-foam toothed surfgrass toothed surf-grass toothed willow-herb toothed wood fern tooth-leaved monkey-flower tooth-leaved wintergreen Torrey's cryptantha Torrey's rush Torrey's sedge Torrey's surf-grass Torrey's willowherb tower mustard Tracy's mistmaiden Tracy's romanzoffia Tracy's rush trailing black currant trailing blackberry trailing cinquefoil trailing fleabane trailing pearlwort trailing raspberry trailing snowberry trailing yellow violet trapper's tea traveler's joy tree lupine tree of heaven Trelease's hybrid willowherb trembling aspen triangle moonwort trianglelobe moonwort tripartate Pacific sanicle true forget-me-not truncated quillwort tuberous rush tuberous springbeauty tufted clubrush tufted daisy tufted fleabane tufted hairgrass tufted loosestrife tufted lovegrass tufted phlox tufted saxifrage tufted vetch tufted white prairie aster tumblegrass Tumblegrass tumbleweed tumbling orache tumbling saltweed tundra buttercup tundra milkvetch tundra milk-vetch tunic flower Turion duckweed Turkish rocket Turkish wartycabbage turnip Tussock Cottongrass tutsan Tweedy's lewisia Tweedy's willow twin arnica twinberry honeysuckle twinflower twinflower violet twinleaf bedstraw twistedstalk twocolor sedge Two-coloured Lupine two-coloured sedge two-edged water-starwort twoflower cinquefoil two-flowered cinquefoil twoflowered rush two-flowered rush twoheaded water-starwort twoleaf watermilfoil two-leaved false Solomon's-seal twolobe larkspur two-parted sedge twoscale saltbush twospike larkspur two-spiked moonwort twotipped sedge two-toned sedge Tyrol knapweed umbel bitter-cress umbellate chickweed Umbellate Hawkweed umbellate starwort umber pussytoes umbrella starwort umbrellawort Unalaska paintbrush undergreen willow under-green willow Unknown unlovely buttercup upland evening primrose upland larkspur uplifting suncress upright chickweed upright hedge-parsley upright prairie coneflower upright spurge upright yellow oxalis upswept moonwort Ussurian water-milfoil Utah honeysuckle Utah snowberry Utah sweetvetch Ute lady's tresses Vahl's speedwell Valley Sedge valley violet Vancouver groundcone Vancouver Island beggarticks Vancouver thistle vanilla-leaf variable bentgrass variableleaf collomia variableleaf pondweed variableleaf yellowcress Variable-leaved Scorpionweed Varied-leaf Phacelia varied-leaved watermilfoil variegated scouringrush variegated sedge variegated yellow pond-lily varileaf phacelia vari-leaved collomia various-leaved fescue various-leaved fescue Vasey's rush veiny meadowrue veiny meadow-rue velvet bentgrass velvet lupine velvet trumpet flower Velvet-leaf velvetleaf huckleberry velvet-leaved blueberry velvetweed velvety goldenrod ventenata Venus' Looking-glass vernal water-starwort verticillate water-milfoil vervain mallow Victoria owl-clover villous cinquefoil vine maple vine-leaved coltsfoot violet suksdorfia viper's bugloss Virginia dwarf dandelion Virginia pepperweed Virginia strawberry viviparous fescue walking onion wall alyssum wall barley wall fumitory wall hawkweed wall lettuce wall speedwell Wallace's selaginella Wallace's spikemoss wand mullein wandering daisy wapato Washington fescue Washington fescue Washington hawthorn Washington springbeauty water arum water avens Water Awlwort water birch water bur-reed water chickweed water clubrush water foxtail water fringe water hemp water horsetail water lentil water lobelia water marigold water meadow-foxtail water minerslettuce water mint water mudwort water parsely water pygmyweed water ragwort water sedge water shield water smartweed water speedwell water star-grass water target Water Whorl Grass water whorlgrass waterawlwort watermelon water-pepper water-plantain buttercup water-purslane watershield waterwort water-milfoil Watson's cryptantha Wavy blue grass wavy hairgrass wavy water nymph wavyleaf thistle wavy-leaved thistle wax currant waxflower shinleaf waxleaf penstemon Wax-leaved Beardtongue waxy mannagrass wayfaring tree Weak Arctic Sedge weak bluegrass weak false-manna weak-nerved sedge wedge-leaf primrose wedgeleaf saxifrage wedge-leaved primrose wedge-leaved saxifrage wedgescale orache wedgescale saltbush weed silene weedy hawksbeard weeping alkaligrass weeping bluegrass weeping lovegrass weeping sedge weeping willow weevil prairie-dandelion Weiser milk-vetch Weiser's milkvetch weld Welsh poppy Welsh poppy west coast goldenrod Western Bell Heather western bitter-cress western black currant western blue clematis western blue flax western blue iris western blue virginsbower western bluegrass western bog-laurel western brackenfern western burnet Western buttercup western centaury western cliff fern western clubmoss western columbine western coralroot western cowbane western dock western dogbane western dwarf cliffbrake western fairy-candelabra western false asphodel western false dragonhead western fescue western fineleaf pondweed western fir clubmoss western fir-moss western flowering dogwood western germander western goldenrod western goldentop western grasswort western groundsel western hawksbeard Western hawksbeard western hedysarum western hemlock western inflated sedge western larch western lettuce western lilaeopsis western low hawksbeard western low hawksbeard (ssp.rostrata) western maiden-hair fern western mannagrass western marsh cudweed western meadowrue western meadow-rue western monkey-flower western moonwort western moss heather western mountain ash western mountain aster western mountain-ash western mountainbells western mugwort Western Needle Grass western needlegrass western oak fern western oakfern western one-flowered broomrape Western Onion Grass western oxypolis western paintbrush western panicgrass western parsley-piert Western pasqueflower western pearlwort western pearly everlasting western poison ivy western polypody western quillwort western rattlesnake plantain western rattlesnakeroot western rattlesnake-root western red cedar western redcedar western rockjasmine western rush western sandspurry western saxifrage western skunk cabbage western snowberry western spotted coralroot western springbeauty western St. John's-wort western starflower western stickseed western stoneseed western strawberry-bush western sweet-cicely western sweetroot western sweetvetch western sweet-vetch western swordfern western tansy mustard western teaberry western tea-berry western touch-me-not western trillium western trumpet western valerian western wahoo western wallflower western water hemlock western watermilfoil western water-milfoil western waterweed western wheatgrass western white clematis western white pine western willow aster western witchgrass western yellow cress western yew wheat wheat sedge Wheeler's bluegrass whip pussytoes whiplash hawkweed whiplash saxifrage whiplash willow white adder's-mouth orchid white arctic mountain heather white avalanche lily white avalanche-lily white beak-rush white beaksedge white bedstraw white birch white brodiaea white cinquefoil white clematis white clover white cockle white cottongrass White Currant white dryad white fairypoppy white fawn lily white glacier lily white hawkweed White Heath Aster white lady's-slipper white locoweed white marsh-marigold white meadowsweet White Meadow-sweet white meconella white mignonette white moss-heather white mountain marsh-marigold white mountain-avens white mountain-heather white mulberry white mullein white mustard White or Dentate Shootingstar white panicle aster white pigweed White Prairie Aster white pussytoes white rhododendron white sagebrush white sedge White Shooting Star white shootingstar white small-flowered paintbrush white spanishbroom white spirea white spruce white stonecrop white sweet-clover white sweetvetch white thistle white triteleia white upright mignonette white vervain white violet white virgin's bower White Virgin's-bower white water buttercup white water crowfoot white water-buttercup white waterleaf white western groundsel white willow white wintergreen white wood-sorrel whitebark pine whitebark raspberry Whited's fissurewort white-flowered rhododendron white-flowered willowherb white-lip rein orchid whitescale sedge whitestem blazingstar whitestem gooseberry whitestem pondweed white-stemmed evening star white-stemmed gooseberry whitetip clover white-tipped clover white-top aster Whitetop Fleabane whiteveined wintergreen white-veined wintergreen whitewash cornflower whitewhorl lupine whitish rush whorled lousewort whorled mint whorled plantain whorl-leaf watermilfoil whortleberry wideleaf polargrass widepetal lousewort widgeongrass wild basil wild basil savory wild bergamot wild black gooseberry wild calla wild carrot wild chamomile wild chervil wild chives wild cucumber Wild Garlic wild ginger wild guelder-rose wild licorice wild lily-of-the-valley wild marjoram wild mint wild mustard wild oat wild parsnip wild radish wild sarsaparilla wild strawberry wild tobacco willow dock willow weed willowleaf aster willow-leaved cotoneaster Wind River draba Wind River whitlow-grass wind-blown suncress wine grape Wine raspberry winecup clarkia winged combseed winged lythrum winged pigweed winged rib winged tobacco winged water-starwort wingstem monkey-flower winter bentgrass winter currant winter rape winter vetch wire lettuce wirestem muhly Wireweed wiry knotweed witchgrass witch's moneybags withered bluegrass wolfberry Wolf's trisetum wolf-willow wood bittercress wood bitter-cress wood bluegrass wood forget-me-not wood groundsel wood horsetail wood lily wood reedgrass wood sage wood saxifrage wood strawberry Wood Valerian wood-betony woodbine woodland beardtongue woodland buttercup woodland crocus woodland cudweed woodland draba woodland forget-me-not woodland horsetail woodland madia woodland penstemon woodland pinedrops woodland ragwort woodland strawberry woodland tarweed woodrush pussytoes woodrush sedge woods bluegrass woods bluegrass (ssp. nemoralis) woods draba Wood's Rose woods whitlow-grass woodypod milkvetch woolen-breeches woolgrass wool-grass woolgrass bulrush woolly breeches woolly cinquefoil woolly daisy woolly eriophyllum woolly fleabane woolly foxglove woolly geranium woolly groundsel woolly hawkweed woolly hedgenettle woolly lousewort woolly mullein woolly plantain woolly pussytoes woolly sedge woolly vetch woollyfruit sedge Woolly-heads woollypod milkvetch woollypod milk-vetch wormleaf stonecrop worm-leaved stonecrop wormseed mustard wormseed sandmat wormseed wallflower Wormskjold's Alpine Speedwell wormwood Wright's filmy fern Wright's golden carpet Wright's golden-saxifrage wrinkleleaf goldenrod Wyeth biscuitroot Wyoming Besseya Wyoming kitten-tails Yakutat moonwort yarrow yellow alfalfa yellow anemone yellow archangel yellow arctic draba Yellow Avalanche Lily yellow avalanche-lily yellow avens yellow bedstraw yellow bell yellow bog sedge yellow bristlegrass yellow buckwheat yellow bush lupine yellow chamomile yellow clover yellow columbine yellow coralbells yellow coralroot yellow cress yellow evening-primrose yellow floating-heart yellow foxglove yellow foxtail yellow fritillary yellow glacier lily yellow glandweed yellow gromwell yellow hairgrass yellow hedysarum yellow iris yellow king devil yellow lady's slipper yellow loosestrife Yellow Marsh Saxifrage yellow marsh-marigold yellow mignonette yellow monkey-flower Yellow Montane Violet yellow mountain saxifrage yellow mountain-avens yellow mountainheath yellow mountain-heather yellow nut-grass yellow nutsedge yellow owl-clover yellow owl's-clover yellow oxalis yellow parentucellia yellow penstemon yellow pine yellow pond-lily yellow prairie violet yellow rabbitbrush yellow rattle yellow rocket yellow sagebrush violet yellow salsify yellow sand-verbena yellow saxifrage yellow scabious yellow sedge yellow skunk cabbage Yellow Spring bedstraw yellow starthistle yellow star-thistle yellow sweetclover yellow sweet-clover yellow sweet-vetch yellow water buttercup yellow water-buttercup yellow water-crowfoot yellow widelip orchid yellow willowherb yellow wood violet yellowbeak owl's-clover yellow-cedar yellowdevil hawkweed yellowdot saxifrage yellow-flowered sedge yellowish paintbrush yellowishwhite bladderwort yellowseed false pimpernel yellowseed false pimpernel Yellowstone draba Yellowstone whitlow-grass yellowtuft yerba buena Yoho paintbrush Yorkshire fog youth-on-age Yukon bellflower Yukon groundsel Yukon lupine Yukon sawwort Yukon saxifrage Zika's sedge Zschac's goosefoot	Abies amabilis Abies grandis Abies lasiocarpa Abronia latifolia Abronia umbellata Abronia umbellata var. breviflora Abutilon theophrasti Acer campestre Acer circinatum Acer ginnala Acer glabrum Acer glabrum var. douglasii Acer macrophyllum Acer negundo Acer platanoides Acer pseudoplatanus Acer rubrum Acer rubrum var. rubrum Acer saccharinum Achillea alpina Achillea alpina ssp. multiflora Achillea borealis Achillea filipendulina Achillea millefolium Achillea ptarmica Achlys triphylla Achnatherum hymenoides Achnatherum lemmonii Achnatherum lemmonii ssp. lemmonii Achnatherum nelsonii Achnatherum nelsonii ssp. dorei Achnatherum nelsonii ssp. nelsonii Achnatherum occidentale Achnatherum occidentale ssp. pubescens Achnatherum richardsonii Achnatherum thurberianum Acinos arvensis Acmispon americanus Acmispon americanus var. americanus Acmispon denticulatus Acmispon parviflorus Aconitum columbianum Aconitum columbianum ssp. columbianum Aconitum delphiniifolium Aconitum napellus Acorus americanus Actaea elata Actaea elata var. elata Actaea rubra Adenocaulon bicolor Adiantum aleuticum Adiantum aleuticum var. aleuticum Adiantum aleuticum var. subpumilum Adiantum capillus-veneris Adiantum raddianum Adoxa moschatellina Aegilops cylindrica Aegilops tauschii Aegopodium podagraria Aesculus hippocastanum Aethusa cynapium Agastache foeniculum Agastache urticifolia Agoseris aurantiaca Agoseris aurantiaca var. aurantiaca Agoseris glauca Agoseris glauca var. dasycephala Agoseris glauca var. glauca Agoseris grandiflora Agoseris grandiflora var. leptophylla Agoseris heterophylla Agoseris heterophylla var. heterophylla Agoseris lackschewitzii Agrimonia gryposepala Agrimonia striata Agropyron cristatum Agropyron fragile Agrostemma githago Agrostis canina Agrostis capillaris Agrostis castellana Agrostis exarata Agrostis gigantea Agrostis idahoensis Agrostis mertensii Agrostis microphylla Agrostis oregonensis Agrostis pallens Agrostis scabra Agrostis stolonifera Agrostis variabilis Ailanthus altissima Aira caryophyllea Aira praecox Ajuga reptans Alcea rosea Alchemilla mollis Alchemilla monticola Alchemilla subcrenata Alisma gramineum Alisma lanceolatum Alisma plantago-aquatica Alisma triviale Alliaria petiolata Allium acuminatum Allium amplectens Allium cepa Allium cernuum Allium crenulatum Allium geyeri Allium geyeri var. tenerum Allium sativum Allium schoenoprasum Allium scorodoprasum Allium vineale Allium x proliferum Allotropa virgata Alnus alnobetula Alnus alnobetula ssp. crispa Alnus alnobetula ssp. fruticosa Alnus alnobetula ssp. sinuata Alnus incana Alnus incana ssp. tenuifolia Alnus rubra Alopecurus aequalis Alopecurus aequalis var. aequalis Alopecurus arundinaceus Alopecurus carolinianus Alopecurus geniculatus Alopecurus magellanicus Alopecurus myosuroides Alopecurus pratensis Alyssum alyssoides Alyssum desertorum Alyssum murale Amaranthus albus Amaranthus blitoides Amaranthus blitum Amaranthus blitum ssp. emarginatus Amaranthus cruentus Amaranthus hypochondriacus Amaranthus powellii Amaranthus powellii ssp. bouchonii Amaranthus powellii ssp. powellii Amaranthus retroflexus Amaranthus rudis Amberboa moschata Ambrosia artemisiifolia Ambrosia chamissonis Ambrosia trifida Amelanchier alnifolia Amelanchier alnifolia var. semiintegrifolia Amelanchier cusickii Amelanchier lamarckii Ammannia robusta Ammophila arenaria Ammophila arenaria ssp. arenaria Ammophila breviligulata Ammophila breviligulata ssp. breviligulata Amphiscirpus nevadensis Amsinckia intermedia Amsinckia lycopsoides Amsinckia menziesii Amsinckia spectabilis Amsinckia tesselata Anaphalis margaritacea Anarrhinum bellidifolium Anchusa arvensis Anchusa azurea Anchusa azurea var. azurea Anchusa officinalis Andersonglossum boreale Andromeda polifolia Andromeda polifolia var. polifolia Androsace chamaejasme Androsace chamaejasme ssp. andersonii Androsace chamaejasme ssp. lehmanniana Androsace occidentalis Androsace septentrionalis Anemonastrum canadense Anemonastrum richardsonii Anemonastrum sibiricum Anemonastrum villosissimum Anemone cylindrica Anemone drummondii Anemone drummondii var. drummondii Anemone drummondii var. lithophila Anemone lyallii Anemone multifida Anemone multifida var. multifida Anemone multifida var. saxicola Anemone narcissiflora Anemone narcissiflora var. villosissima Anemone nemorosa Anemone occidentalis Anemone parviflora Anemone patens Anemone piperi Anemone virginiana Anemone virginiana var. cylindroidea Anethum graveolens Angelica arguta Angelica dawsonii Angelica genuflexa Angelica lucida Anisocarpus madioides Antennaria anaphaloides Antennaria dimorpha Antennaria flagellaris Antennaria howellii Antennaria howellii ssp. howellii Antennaria howellii ssp. neodioica Antennaria howellii ssp. petaloidea Antennaria lanata Antennaria luzuloides Antennaria luzuloides ssp. luzuloides Antennaria media Antennaria microphylla Antennaria monocephala Antennaria monocephala ssp. angustata Antennaria monocephala ssp. monocephala Antennaria monocephela ssp. angustata Antennaria neglecta Antennaria pallida Antennaria parvifolia Antennaria pulcherrima Antennaria pulcherrima ssp. pulcherrima Antennaria pulvinata Antennaria racemosa Antennaria rosea Antennaria rosea ssp. pulvinata Antennaria umbrinella Anthemis arvensis Anthemis cotula Anthoxanthum aristatum ssp. aristatum Anthoxanthum hirtum Anthoxanthum monticola Anthoxanthum monticola ssp. alpinum Anthoxanthum odoratum Anthriscus caucalis Anthriscus cerefolium Anthriscus sylvestris Anthyllis vulneraria Anticlea elegans Anticlea occidentalis Antirrhinum majus Apera interrupta Aphanes arvensis Aphanes australis Aphanes occidentalis Aphragmus eschscholtzianus Aphyllon californicum Aphyllon californicum ssp. californicum Aphyllon corymbosum Aphyllon corymbosum ssp. mutabile Aphyllon fasciculatum Aphyllon ludovicianum Aphyllon pinorum Aphyllon purpureum Aphyllon uniflorum Apocynum androsaemifolium Apocynum androsaemifolium var. androsaemifolium Apocynum androsaemifolium var. pumilum Apocynum cannabinum Apocynum x floribundum Aquilegia brevistyla Aquilegia flavescens Aquilegia formosa Aquilegia formosa var. formosa Aquilegia vulgaris Arabidopsis lyrata Arabidopsis lyrata ssp. kamchatica Arabidopsis thaliana Arabis caucasica Arabis eschscholtziana Arabis nuttallii Arabis pycnocarpa Arabis pycnocarpa var. pycnocarpa Arachis hypogaea Aralia elata Aralia nudicaulis Arbutus menziesii Arceuthobium americanum Arceuthobium douglasii Arceuthobium laricis Arceuthobium tsugense Arceuthobium tsugense ssp. contortae Arceuthobium tsugense ssp. mertensianae Arceuthobium tsugense ssp. tsugense Arctagrostis latifolia Arctagrostis latifolia ssp. arundinacea Arctanthemum arcticum Arctanthemum arcticum ssp. arcticum Arcteranthis cooleyae Arctium lappa Arctium minus Arctophila fulva Arctopoa eminens Arctostaphylos columbiana Arctostaphylos uva-ursi Arctostaphylos x media Arctous alpinus Arctous rubra Arenaria longipedunculata Arenaria serpyllifolia Arenaria serpyllifolia var. serpyllifolia Argemone mexicana Aristida oligantha Aristida purpurea Aristida purpurea var. longiseta Armeria maritima Armeria maritima ssp. californica Armeria maritima ssp. maritima Armoracia rusticana Arnica angustifolia Arnica angustifolia ssp. angustifolia Arnica angustifolia ssp. tomentosa Arnica chamissonis Arnica cordifolia Arnica fulgens Arnica gracilis Arnica griscomii Arnica griscomii ssp. frigida Arnica lanceolata Arnica lanceolata ssp. prima Arnica latifolia Arnica lessingii Arnica lonchophylla Arnica longifolia Arnica louiseana Arnica mollis Arnica ovata Arnica parryi Arnica rydbergii Arnica sororia Arrhenatherum elatius Arrhenatherum elatius ssp. bulbosum Arrhenatherum elatius ssp. elatius Arrhenatherum elatius var. bulbosum Arrhenatherum elatius var. elatius Artemisia absinthium Artemisia alaskana Artemisia annua Artemisia biennis Artemisia borealis Artemisia borealis ssp. borealis Artemisia campestris Artemisia campestris ssp. pacifica Artemisia douglasiana Artemisia dracunculus Artemisia frigida Artemisia furcata Artemisia herriotii Artemisia lindleyana Artemisia ludoviciana Artemisia ludoviciana ssp. candicans Artemisia ludoviciana ssp. ludoviciana Artemisia michauxiana Artemisia norvegica Artemisia norvegica ssp. saxatilis Artemisia scoparia Artemisia stelleriana Artemisia suksdorfii Artemisia tilesii Artemisia tridentata Artemisia tridentata ssp. tridentata Artemisia tridentata ssp. vaseyana Artemisia tripartita Artemisia tripartita ssp. tripartita Artemisia vulgaris Arum italicum Aruncus dioicus Aruncus dioicus var. acuminatus Asarum caudatum Asclepias ovalifolia Asclepias speciosa Askellia elegans Askellia pygmaea Asparagus officinalis Asperugo procumbens Asperula arvensis Aspidotis densa Asplenium adulterinum Asplenium scolopendrium Asplenium trichomanes Asplenium trichomanes ssp. quadrivalens Asplenium trichomanes ssp. trichomanes Asplenium viride Aster alpinus Aster alpinus ssp. vierhapperi Astilbe chinensis Astragalus agrestis Astragalus alpinus Astragalus alpinus var. alpinus Astragalus americanus Astragalus australis Astragalus beckwithii Astragalus beckwithii var. weiserensis Astragalus bourgovii Astragalus canadensis Astragalus canadensis var. brevidens Astragalus canadensis var. canadensis Astragalus canadensis var. mortonii Astragalus cicer Astragalus collinus Astragalus collinus var. collinus Astragalus crassicarpus Astragalus crassicarpus var. paysonii Astragalus drummondii Astragalus eucosmus Astragalus falcatus Astragalus filipes Astragalus flexuosus Astragalus laxmannii Astragalus laxmannii var. robustior Astragalus laxmannii var. tananaicus Astragalus lentiginosus Astragalus lentiginosus var. lentiginosus Astragalus lotiflorus Astragalus microcystis Astragalus miser Astragalus miser var. miser Astragalus miser var. serotinus Astragalus missouriensis var. missouriensis Astragalus nutzotinensis Astragalus purshii Astragalus purshii var. glareosus Astragalus purshii var. purshii Astragalus robbinsii Astragalus robbinsii var. minor Astragalus sclerocarpus Astragalus spaldingii Astragalus tenellus Astragalus trichopodus var. lonchus Astragalus umbellatus Astragalus vexilliflexus Astragalus vexilliflexus var. vexilliflexus Athyrium alpestre var. americanum Athyrium distentifolium Athyrium filix-femina Athyrium filix-femina var. cyclosorum Athysanus pusillus Atocion armeria Atriplex argentea Atriplex argentea var. argentea Atriplex dioica Atriplex gardneri Atriplex gardneri var. gardneri Atriplex gmelinii Atriplex hortensis Atriplex longipes Atriplex micrantha Atriplex oblongifolia Atriplex patula Atriplex prostrata Atriplex rosea Atriplex truncata Aubrieta deltoidea Avena barbata Avena fatua Avena sativa Avenella flexuosa Axyris amaranthoides Azolla caroliniana Azolla filiculoides Azolla mexicana Balsamorhiza deltoidea Balsamorhiza sagittata Barbarea intermedia Barbarea orthoceras Barbarea verna Barbarea vulgaris Bassia hyssopifolia Bassia scoparia Beckmannia syzigachne Bellis perennis Berberis aquifolium Berberis darwinii Berberis nervosa Berberis repens Berberis thunbergii Berberis vulgaris Berteroa incana Berula erecta Beta vulgaris Betula glandulosa Betula nana ssp. exillis Betula neoalaskana Betula occidentalis Betula papyrifera Betula papyrifera var. commutata Betula papyrifera var. papyrifera Betula pendula Betula pubescens Betula pubescens ssp. pubescens Betula pumila Betula pumila var. glandulifera Bidens amplissima Bidens beckii Bidens cernua Bidens connata Bidens frondosa Bidens pilosa Bidens tripartita Bidens vulgata Bistorta bistortoides Bistorta vivipara Blitum capitatum Blitum hastatum Blitum nuttallianum Boechera calderi Boechera cascadensis Boechera collinsii Boechera divaricarpa Boechera drepanoloba Boechera grahamii Boechera lemmonii Boechera lyallii Boechera macounii Boechera microphylla Boechera pauciflora Boechera paupercula Boechera pendulocarpa Boechera polyantha Boechera retrofracta Boechera sparsiflora Boechera stricta Bolboschoenus fluviatilis Bolboschoenus glaucus Bolboschoenus maritimus Bolboschoenus maritimus var. paludosus Borago officinalis Boschniakia rossica Botrychium alaskense Botrychium ascendens Botrychium campestre Botrychium campestre var. lineare Botrychium crenulatum Botrychium hesperium Botrychium lanceolatum Botrychium michiganense Botrychium minganense Botrychium montanum Botrychium neolunaria Botrychium pallidum Botrychium paradoxum Botrychium pedunculosum Botrychium pinnatum Botrychium simplex Botrychium simplex var. compositum Botrychium spathulatum Botrychium tunux Botrychium yaaxudakeit Botrypus virginianus Bouteloua gracilis Boykinia occidentalis Brachypodium sylvaticum Brasenia schreberi Brassica juncea Brassica napus Brassica nigra Brassica oleracea Brassica oleracea var. oleracea Brassica rapa Braya glabella Braya glabella ssp. glabella Braya humilis Braya humilis ssp. humilis Braya humilis ssp. maccallae Braya humilis ssp. porsildii Brickellia grandiflora Brickellia oblongifolia Brickellia oblongifolia var. oblongifolia Briza maxima Briza media Briza minor Brodiaea coronaria Brodiaea rosea Brodiaea rosea spp. rosea Brodiaea rosea ssp. rosea Bromus aleutensis Bromus arvensis Bromus briziformis Bromus carinatus var. carinatus Bromus carinatus var. marginatus Bromus ciliatus Bromus commutatus Bromus diandrus ssp. rigidus Bromus erectus Bromus hordeaceus Bromus inermis Bromus japonicus Bromus lanceolatus Bromus pacificus Bromus porteri Bromus pumpellianus ssp. pumpellianus Bromus racemosus Bromus richardsonii Bromus riparius Bromus rubens Bromus secalinus Bromus sitchensis Bromus squarrosus Bromus squarrosus var. squarrosus Bromus squarrosus var. villosus Bromus sterilis Bromus tectorum Bromus vulgaris Bryonia dioica Buddleja davidii Buglossoides arvensis Bulbostylis capillaris Bunias orientalis Bupleurum rotundifolia Butomus umbellatus Cacaliopsis nardosmia Cakile edentula Cakile edentula ssp. edentula Cakile maritima Cakile maritima ssp. maritima Calamagrostis canadensis Calamagrostis canadensis var. canadensis Calamagrostis canadensis var. langsdorfii Calamagrostis epigeios Calamagrostis lapponica Calamagrostis montanensis Calamagrostis nutkaensis Calamagrostis purpurascens Calamagrostis rubescens Calamagrostis sesquiflora Calamagrostis stricta Calamagrostis stricta ssp. inexpansa Calamagrostis stricta ssp. stricta Calamovilfa longifolia Calamovilfa longifolia var. longifolia Calandrinia ciliata Calendula arvensis Calendula officinalis Calla palustris Callitriche brutia var. hamulata Callitriche hermaphroditica Callitriche heterophylla Callitriche heterophylla var. bolanderi Callitriche heterophylla var. heterophylla Callitriche marginata Callitriche palustris Callitriche stagnalis Callitriche stenoptera Callitriche terrestris Callitropsis nootkatensis Calluna vulgaris Calochortus apiculatus Calochortus lyallii Calochortus macrocarpus Calochortus macrocarpus var. macrocarpus Caltha biflora Caltha leptosepala Caltha leptosepala var. leptosepala Caltha natans Caltha palustris Caltha palustris ssp. palustris Caltha palustris ssp. radicans Calypso bulbosa Calypso bulbosa var. americana Calypso bulbosa var. occidentalis Calyptridium umbellatum Calystegia macounii Calystegia pubescens Calystegia sepium Calystegia sepium ssp. erratica Calystegia sepium ssp. sepium Calystegia silvatica Calystegia silvatica ssp. silvatica Calystegia soldanella Camassia leichtlinii Camassia leichtlinii ssp. suksdorfii Camassia quamash Camassia quamash ssp. maxima Camassia quamash ssp. quamash Camelina microcarpa Camissonia bistorta Camissonia contorta Camissonia micrantha Campanula aurita Campanula glomerata Campanula lasiocarpa Campanula medium Campanula persicifolia Campanula porscharskyana Campanula rapunculoides Campanula rotundifolia Campanula scouleri Campanula trachelium Campanula uniflora Canadanthus modestus Cannabis sativa Capnoides sempervirens Capsella bursa-pastoris Caragana arborescens Cardamine angulata Cardamine bellidifolia Cardamine breweri Cardamine cordifolia Cardamine corymbosa Cardamine flexuosa Cardamine hirsuta Cardamine nuttallii Cardamine nymanii Cardamine occidentalis Cardamine occulta Cardamine oligosperma Cardamine parviflora Cardamine parviflora var. arenicola Cardamine pensylvanica Cardamine pratensis Cardamine umbellata Cardaria draba ssp. draba Cardionema ramosissimum Carduus acanthoides Carduus acanthoides ssp. acanthoides Carduus crispus Carduus nutans Carex adusta Carex albonigra Carex amplifolia Carex anthoxanthea Carex aperta Carex aquatilis Carex aquatilis ssp. stans Carex aquatilis var. aquatilis Carex aquatilis var. substricta Carex arcta Carex arctiformis Carex arctogena Carex atherodes Carex athrostachya Carex atratiformis Carex atrosquama Carex aurea Carex backii Carex bebbii Carex bicolor Carex bigelowii Carex bolanderi Carex brevior Carex brunnescens Carex brunnescens ssp. brunnescens Carex buxbaumii Carex canescens Carex canescens ssp. canescens Carex canescens ssp. disjuncta Carex capillaris Carex capitata Carex chordorrhiza Carex circinata Carex comosa Carex concinna Carex concinnoides Carex cordillerana Carex crawei Carex crawfordii Carex cusickii Carex deflexa Carex deflexa var. boottii Carex deflexa var. deflexa Carex deweyana Carex deweyana var. deweyana Carex diandra Carex disperma Carex douglasii Carex duriuscula Carex eburnea Carex echinata Carex echinata ssp. echinata Carex echinata ssp. phyllomanica Carex eleusinoides Carex enanderi Carex engelmannii Carex epapillosa Carex exsiccata Carex feta Carex filifolia Carex filifolia var. filifolia Carex flacca Carex flava Carex foenea Carex frankii Carex fuliginosa Carex garberi Carex geyeri Carex glacialis Carex glareosa Carex glareosa ssp. glareosa Carex gmelinii Carex granularis Carex gynocrates Carex hassei Carex haydeniana Carex heleonastes Carex hendersonii Carex hindsii Carex hirta Carex hoodii Carex hystericina Carex illota Carex incurviformis Carex infirminervia Carex inops Carex inops ssp. heliophila Carex inops ssp. inops Carex interior Carex interrupta Carex jonesii Carex kelloggii Carex krausei Carex lachenalii Carex lacustris Carex laeviculmis Carex lapponica Carex lasiocarpa Carex leporina Carex leptalea Carex leptopoda Carex limosa Carex livida Carex loliacea Carex longii Carex luzulina Carex luzulina var. ablata Carex lyngbyei Carex mackenziei Carex macloviana Carex macrocephala Carex macrochaeta Carex magellanica Carex magellanica ssp. irrigua Carex maritima Carex media Carex membranacea Carex mertensii Carex microchaeta Carex microchaeta ssp. microchaeta Carex microglochin Carex microglochin ssp. microglochin Carex micropoda Carex microptera Carex nardina Carex nigra Carex nigricans Carex obnupta Carex obtusata Carex pachystachya Carex pallescens Carex pansa Carex parryana Carex pauciflora Carex paysonis Carex peckii Carex pedunculata Carex pellita Carex pendula Carex petasata Carex petricosa Carex petricosa var. petricosa Carex phaeocephala Carex pluriflora Carex podocarpa Carex praeceptorum Carex praegracilis Carex prairea Carex praticola Carex preslii Carex raynoldsii Carex retrorsa Carex richardsonii Carex rossii Carex rostrata Carex rupestris Carex sartwellii Carex sartwellii var. sartwellii Carex saxatilis Carex saxatilis ssp. laxa Carex scirpoidea Carex scirpoidea ssp. pseudoscirpoidea Carex scirpoidea ssp. scirpoidea Carex scirpoidea ssp. stenochlaena Carex scoparia Carex scoparia var. scoparia Carex scopulorum Carex scopulorum var. bracteosa Carex scopulorum var. prionophylla Carex siccata Carex simulata Carex sitchensis Carex spectabilis Carex sprengelii Carex stipata Carex stipata var. stipata Carex stylosa Carex subbracteata Carex supina Carex supina ssp. spaniocarpa Carex swanii Carex sychnocephala Carex sylvatica Carex tahoensis Carex tenera Carex tenuiflora Carex testacea Carex tonsa Carex tonsa var. tonsa Carex torreyi Carex tribuloides Carex tribuloides var. tribuloides Carex trisperma Carex tumulicola Carex unilateralis Carex utriculata Carex vaginata Carex vallicola Carex vallicola var. vallicola Carex vesicaria Carex viridula Carex viridula ssp. viridula Carex vulpinoidea Carex xerantica Carex zikae Carthamus tinctorius Carum carvi Cassiope lycopodioides Cassiope lycopodioides ssp. cristapilosa Cassiope lycopodioides ssp. lycopodioides Cassiope mertensiana Cassiope mertensiana ssp. mertensiana Cassiope tetragona Cassiope tetragona ssp. saximontana Cassiope tetragona ssp. tetragona Castanea dentata Castilleja ambigua Castilleja ambigua var. ambigua Castilleja attenuata Castilleja cervina Castilleja cusickii Castilleja elmeri Castilleja hispida Castilleja hispida var. hispida Castilleja hyperborea Castilleja levisecta Castilleja lutescens Castilleja miniata Castilleja miniata var. dixonii Castilleja miniata var. fulva Castilleja miniata var. miniata Castilleja minor Castilleja minor var. exilis Castilleja occidentalis Castilleja pallida var. caudata Castilleja parviflora Castilleja parviflora var. albida Castilleja parviflora var. parviflora Castilleja purpurascens Castilleja raupii Castilleja rhexiifolia Castilleja rupicola Castilleja septentrionalis Castilleja tenuis Castilleja thompsonii Castilleja unalaschcensis Castilleja victoriae Catabrosa aquatica Catabrosa aquatica var. aquatica Caylusea abyssinica Ceanothus sanguineus Ceanothus velutinus Ceanothus velutinus var. hookeri Ceanothus velutinus var. velutinus Celastrus scandens Cenchrus longispinus Centaurea calcitrapa Centaurea cyanus Centaurea dealbata Centaurea diffusa Centaurea jacea Centaurea macrocephala Centaurea melitensis Centaurea montana Centaurea nigra Centaurea nigrescens Centaurea scabiosa Centaurea solstitialis Centaurea stoebe Centaurea stoebe ssp. micranthos Centaurea x moncktonii Centaurium erythraea Centranthus ruber Cephalanthera austiniae Cerastium arvense Cerastium arvense ssp. arvense Cerastium arvense ssp. strictum Cerastium beeringianum Cerastium beeringianum ssp. beeringianum Cerastium beeringianum ssp. earlei Cerastium beeringianum var. beeringianum Cerastium fischerianum Cerastium fontanum Cerastium fontanum ssp. vulgare Cerastium glomeratum Cerastium nutans Cerastium nutans var. nutans Cerastium pumilum Cerastium pumilum ssp. glutinosum Cerastium semidecandrum Cerastium tomentosum Ceratocephala testiculata Ceratophyllum demersum Ceratophyllum echinatum Chaenactis douglasii Chaenactis douglasii var. douglasii Chaenomeles speciosa Chaenorhinum minus Chaenorhinum minus ssp. minus Chaerophyllum temulentum Chamaedaphne calyculata Chamaenerion angustifolium Chamaenerion latifolium Chamaerhodos erecta Chamaerhodos erecta ssp. nuttallii Chamaesyce nutans Chamaesyce serpens Chamaesyce serpyllifolia Chamaesyce vermiculata Chelidonium majus Chenopodiastrum murale Chenopodiastrum simplex Chenopodium album Chenopodium album ssp. album Chenopodium album ssp. striatum Chenopodium ambrosioides Chenopodium atrovirens Chenopodium berlandieri Chenopodium berlandieri var. zschackei Chenopodium ficifolium Chenopodium fremontii Chenopodium fremontii var. fremontii Chenopodium hians Chenopodium hybridum Chenopodium incognitum Chenopodium leptophyllum Chenopodium opulifolium Chenopodium pratericola Chenopodium probstii Chenopodium rubrum Chenopodium strictum Chenopodium subglabrum Chenopodium suecicum Cherleria arctica Cherleria biflora Cherleria obtusiloba Chimaphila menziesii Chimaphila umbellata Chimaphila umbellata ssp. occidentalis Chimaphila umbellata ssp. umbellata Chionodoxa forbesii Chionodoxa luciliae Chondrilla juncea Chorispora tenella Chrysosplenium iowense Chrysosplenium tetrandrum Chrysosplenium wrightii Chrysothamnus viscidiflorus Chrysothamnus viscidiflorus ssp. lanceolatus Cicer arietinum Cichorium intybus Cicuta bulbifera Cicuta douglasii Cicuta maculata Cicuta maculata var. angustifolia Cicuta virosa Cinna latifolia Circaea alpina Circaea alpina ssp. alpina Circaea alpina ssp. pacifica Cirsium arvense Cirsium brevistylum Cirsium drummondii Cirsium edule Cirsium edule var. macounii Cirsium flodmanii Cirsium foliosum Cirsium hookerianum Cirsium palustre Cirsium scariosum Cirsium scariosum var. scariosum Cirsium undulatum Cirsium vulgare Cirsium x vancouverense Cistanthe umbellata var. caudicifera Cistus creticus Citrullus lanatus Cladanthus mixtus Clarkia amoena Clarkia amoena ssp. caurina Clarkia amoena ssp. lindleyi Clarkia arcuata Clarkia pulchella Clarkia purpurea Clarkia purpurea ssp. quadrivulnera Clarkia rhomboidea Claytonia cordifolia Claytonia exigua Claytonia exigua ssp. exigua Claytonia exigua ssp. glauca Claytonia lanceolata Claytonia megarhiza Claytonia megarhiza var. megarhiza Claytonia multiscapa Claytonia multiscapa ssp. pacifica Claytonia parviflora Claytonia parviflora ssp. parviflora Claytonia perfoliata Claytonia perfoliata ssp. intermontana Claytonia perfoliata ssp. perfoliata Claytonia rubra Claytonia rubra ssp. depressa Claytonia rubra ssp. rubra Claytonia sarmentosa Claytonia sibirica Claytonia tuberosa Claytonia washingtoniana Clematis ligusticifolia Clematis ligusticifolia var. ligusticifolia Clematis occidentalis Clematis occidentalis var. grosseserrata Clematis tangutica Clematis tangutica var. tangutica Clematis vitalba Clinopodium douglasii Clinopodium vulgare Clintonia uniflora Cnidium cnidiifolium Cochlearia groenlandica Coeloglossum viride var. virescens Coleanthus subtilis Coleataenia rigidula ssp. rigidula Collinsia grandiflora Collinsia parviflora Collomia grandiflora Collomia heterophylla Collomia linearis Collomia tenella Colutea arborescens Comandra umbellata Comandra umbellata ssp. californica Comandra umbellata ssp. pallida Comarum palustre Comastoma tenellum Conioselinum gmelinii Conium maculatum Conringia orientalis Consolida ajacis Consolida orientalis Convolvulus arvensis Conyza bonariensis Conyza canadensis Coptidium lapponicum Coptis aspleniifolia Coptis trifolia Corallorhiza maculata Corallorhiza maculata var. maculata Corallorhiza maculata var. occidentalis Corallorhiza maculata var. ozettensis Corallorhiza mertensiana Corallorhiza striata Corallorhiza striata var. striata Corallorhiza trifida Coreopsis lanceolata Coreopsis tinctoria Coreopsis tinctoria var. atkinsoniana Coreopsis tinctoria var. tinctoria Coreopsis verticillata Coriandrum sativum Corispermum americanum Corispermum americanum var. americanum Corispermum hookeri Corispermum hookeri var. hookeri Corispermum hookeri var. pseudodeclinatum Corispermum pacificum Corispermum pallasii Corispermum villosum Cornus canadensis Cornus nuttallii Cornus sanguinea Cornus sericea Cornus suecica Cornus unalaschkensis Corrigiola litoralis Corrigiola litoralis ssp. litoralis Corydalis aurea Corydalis aurea ssp. aurea Corydalis pauciflora Corydalis scouleri Corylus avellana Corylus cornuta Corylus cornuta ssp. californica Corylus cornuta ssp. cornuta Corynephorus canescens Cosmos bipinnatus Cota tinctoria Cotoneaster crispii Cotoneaster dammeri Cotoneaster dielsianus Cotoneaster divaricatus Cotoneaster franchetii Cotoneaster hjelmqvistii Cotoneaster horizontalis Cotoneaster hybridus pendulus Cotoneaster lacteus Cotoneaster lucidus Cotoneaster qungbixiensis Cotoneaster rehderi Cotoneaster salicifolius Cotoneaster simonsii Cotoneaster sternianus Cotoneaster tengyuehensis Cotoneaster x crispii Cotoneaster x suecicus Cotoneaster x watereri Cotula australis Cotula coronopifolia Crassula aquatica Crassula connata Crassula connata var. connata Crassula tillaea Crataegus atrovirens Crataegus castlegarensis Crataegus chrysocarpa Crataegus chrysocarpa var. chrysocarpa Crataegus chrysocarpa var. piperi Crataegus chrysocarpa var. vernonensis Crataegus douglasii Crataegus douglasii var. douglasii Crataegus douglasii var. suksdorfii Crataegus enderbyensis Crataegus gaylussacia Crataegus macracantha Crataegus monogyna Crataegus monogyna var. monogyna Crataegus okanaganensis Crataegus okanaganensis var. longispina Crataegus okanaganensis var. okanaganensis Crataegus okanaganensis var. wellsii Crataegus okennonii Crataegus orbicularis Crataegus phaenopyrum Crataegus phippsii Crataegus sheila-phippsiae var. sheila-phippsiae Crataegus shuswapensis Crataegus tenuior Crepis acuminata ssp. acuminata Crepis atribarba Crepis atribarba ssp. atribarba Crepis atribarba ssp. originalis Crepis biennis Crepis capillaris Crepis modocensis Crepis modocensis ssp. modocensis Crepis modocensis ssp. rostrata Crepis occidentalis Crepis occidentalis ssp. conjucta Crepis occidentalis ssp. conjuncta Crepis occidentalis ssp. costata Crepis occidentalis ssp. occidentalis Crepis occidentalis ssp. pumila Crepis runcinata Crepis runcinata ssp. runcinata Crepis setosa Crepis tectorum Crepis vesicaria Crepis vesicaria ssp. taraxacifolia Crocidium multicaule Crocosmia x crocosmiiflora Crocus tommasinianus Crocus vernus Cruciata pedemontana Crypsis alopecuroides Cryptantha affinis Cryptantha ambigua Cryptantha celosioides Cryptantha intermedia Cryptantha torreyana Cryptantha watsonii Cryptogramma acrostichoides Cryptogramma cascadensis Cryptogramma sitchensis Cryptogramma stelleri Cucumis melo Cucurbita pepo Cuscuta approximata Cuscuta campestris Cuscuta cephalanthi Cuscuta epithymum Cuscuta pacifica Cuscuta pacifica var. pacifica Cyclachaena xanthiifolia Cyclamen hederifolium Cycloloma atriplicifolium Cydonia oblonga Cymbalaria muralis Cynara cardunculus ssp. cardunculus Cynara scolymus Cynodon dactylon Cynodon dactylon var. dactylon Cynoglossum officinale Cynosurus cristatus Cynosurus echinatus Cyperus acuminatus Cyperus eragrostis Cyperus erythrorhizos Cyperus esculentus Cyperus esculentus var. leptostachyus Cyperus retrorsus Cyperus squarrosus Cyperus strigosus Cypripedium montanum Cypripedium parviflorum Cypripedium parviflorum var. makasin Cypripedium parviflorum var. pubescens Cypripedium passerinum Cypripedium x columbianum Cystopteris fragilis Cystopteris montana Cytisus monspessulanus Cytisus multiflorus Cytisus scoparius Cytisus striatus Cytisus villosus Daboecia cantabrica Dactylis glomerata Dactylorhiza viridis Danthonia californica Danthonia decumbens Danthonia intermedia Danthonia intermedia ssp. intermedia Danthonia spicata Danthonia unispicata Daphne laureola Daphne mezereum Dasiphora fruticosa Dasiphora fruticosa ssp. floribunda Datura innoxia Datura stramonium Datura wrightii Daucus carota Daucus pusillus Delphinium bicolor Delphinium bicolor ssp. bicolor Delphinium distichum Delphinium elatum Delphinium glaucum Delphinium menziesii Delphinium menziesii ssp. menziesii Delphinium nuttallianum Delphinium sutherlandii Dendrolycopodium dendroideum Deschampsia cespitosa Deschampsia cespitosa ssp. beringensis Deschampsia cespitosa ssp. cespitosa Deschampsia danthonioides Deschampsia elongata Descurainia incana Descurainia incisa Descurainia incisa ssp. incisa Descurainia longepedicellata Descurainia nelsonii Descurainia pinnata Descurainia pinnata ssp. brachycarpa Descurainia sophia Descurainia sophioides Deutzia scabra 'Plena' Dianthus armeria Dianthus armeria ssp. armeria Dianthus barbatus Dianthus barbatus ssp. barbatus Dianthus deltoides Dianthus deltoides ssp. deltoides Dianthus gratianopolitanus Diapensia lapponica Diapensia obovata Dicentra formosa Dicentra formosa ssp. formosa Dicentra uniflora Dichanthelium acuminatum Dichanthelium acuminatum var. fasciculatum Dichanthelium oligosanthes Dichanthelium oligosanthes var. scribnerianum Dieteria canescens Dieteria canescens var. canescens Digitalis grandiflora Digitalis lanata Digitalis lutea Digitalis purpurea Digitaria ischaemum Digitaria sanguinalis Diphasiastrum alpinum Diphasiastrum complanatum Diphasiastrum sitchense Diplotaxis muralis Diplotaxis tenuifolia Dipsacus fullonum Dipsacus fullonum ssp. sylvestris Dipsacus laciniatus Distichlis spicata Distichlis spicata var. spicata Distichlis spicata var. stricta Dodecatheon conjugens Dodecatheon dentatum Dodecatheon hendersonii Dodecatheon hendersonii ssp. hendersonii Dodecatheon jeffreyi Dodecatheon jeffreyi ssp. jeffreyi Dodecatheon pulchellum Dodecatheon pulchellum var. macrocarpum Doronicum orientale Doronicum pardalianches Doronicum plantagineum Doronicum x plantagineum Douglasia gormanii Douglasia laevigata Downingia elegans Draba albertina Draba aurea Draba borealis Draba cana Draba chamissonis Draba cinerea Draba corymbosa Draba crassifolia Draba densifolia Draba fladnizensis Draba franktonii Draba glabella Draba glabella var. glabella Draba grandis Draba incerta Draba juvenilis Draba lactea Draba lonchocarpa Draba lonchocarpa var. lonchocarpa Draba lonchocarpa var. vestita Draba macounii Draba nemorosa Draba nivalis Draba novolympica Draba oligosperma Draba palanderiana Draba porsildii Draba praealta Draba ruaxes Draba stenoloba Draba stenopetala Draba taylori Draba taylorii Draba thompsonii Draba ventosa Draba verna Dracocephalum parviflorum Dracocephalum thymiflorum Dracopis amplexicaulis Drosera anglica Drosera linearis Drosera rotundifolia Drosera rotundifolia var. rotundifolia Drosera x obovata Dryas ajanensis ssp. beringensis Dryas drummondii Dryas drummondii var. drummondii Dryas drummondii var. eglandulosa Dryas drummondii var. tomentosa Dryas hookeriana Dryas incisa Dryas integrifolia Dryas integrifolia ssp. integrifolia Dryas integrifolia ssp. sylvatica Dryas octopetala Drymocallis arguta Drymocallis convallaria Drymocallis glandulosa Drymocallis glandulosa var. glandulosa Drymocallis glandulosa var. glandulosa Drymocallis pseudorupestris Drymocallis pseudorupestris var. saxicola Dryopteris arguta Dryopteris carthusiana Dryopteris cristata Dryopteris expansa Dryopteris filix-mas Dryopteris filix-mas ssp. filix-mas Dryopteris fragrans Duchesnea indica Duchesnea indica var. indica Dulichium arundinaceum Dulichium arundinaceum var. arundinaceum Dysphania botrys Dysphania pumilio Echinochloa crus-galli Echinochloa muricata Echinochloa muricata var. microstachya Echinocystis lobata Echinops exaltatus Echinops sphaerocephalus Echium vulgare Egeria densa Ehrharta erecta Elaeagnus angustifolia Elaeagnus commutata Elaeagnus multiflora Elaeagnus umbellata Elatine brachysperma Elatine rubella Eleocharis acicularis Eleocharis atropurpurea Eleocharis coloradoensis Eleocharis compressa Eleocharis compressa var. compressa Eleocharis elliptica Eleocharis engelmannii Eleocharis erythropoda Eleocharis geniculata Eleocharis kamtschatica Eleocharis macrostachya Eleocharis mamillata Eleocharis mamillata ssp. mamillata Eleocharis nitida Eleocharis obtusa Eleocharis ovata Eleocharis palustris Eleocharis parvula Eleocharis quinqueflora Eleocharis rostellata Eleocharis suksdorfiana Eleocharis tenuis Eleocharis tenuis var. verrucosa Eleocharis uniglumis Eleusine indica Elliottia pyroliflora Elmera racemosa Elmera racemosa var. racemosa Elodea callitrichoides Elodea canadensis Elodea nuttallii Elymus alaskanus Elymus alaskanus ssp. alaskanus Elymus albicans Elymus canadensis Elymus canadensis var. brachystachys Elymus canadensis var. canadensis Elymus curvatus Elymus dahuricus var. dahuricus Elymus elymoides Elymus elymoides ssp. brevifolius Elymus elymoides ssp. californicus Elymus glaucus Elymus glaucus ssp. glaucus Elymus glaucus ssp. virescens Elymus hirsutus Elymus lanceolatus Elymus lanceolatus ssp. lanceolatus Elymus lanceolatus ssp. psammophilus Elymus lanceolatus ssp. riparius Elymus repens Elymus scribneri Elymus sibiricus Elymus trachycaulus Elymus trachycaulus ssp. subsecundus Elymus trachycaulus ssp. trachycaulus Elymus violaceus Elymus x hansenii Elymus x saundersii Empetrum nigrum Enemion savilei Epilobium anagallidifolium Epilobium angustifolium ssp. angustifolium Epilobium angustifolium ssp. circumvagum Epilobium brachycarpum Epilobium campestre Epilobium ciliatum Epilobium ciliatum ssp. ciliatum Epilobium ciliatum ssp. glandulosum Epilobium ciliatum ssp. watsonii Epilobium clavatum Epilobium davuricum Epilobium densiflorum Epilobium foliosum Epilobium glaberrimum Epilobium glaberrimum ssp. fastigiatum Epilobium glareosum Epilobium hallianum Epilobium hirsutum Epilobium hornemannii Epilobium hornemannii ssp. behringianum Epilobium hornemannii ssp. hornemannii Epilobium komarovianum Epilobium lactiflorum Epilobium leptocarpum Epilobium leptophyllum Epilobium luteum Epilobium minutum Epilobium mirabile Epilobium montanum Epilobium obscurum Epilobium oregonense Epilobium palustre Epilobium parviflorum Epilobium saximontanum Epilobium smithii Epilobium tetragonum Epilobium tetragonum ssp. tetragonum Epilobium torreyi Epilobium x treleasianum Epipactis gigantea Epipactis helleborine Equisetum arvense Equisetum fluviatile Equisetum hyemale Equisetum hyemale ssp. affine Equisetum laevigatum Equisetum palustre Equisetum pratense Equisetum scirpoides Equisetum sylvaticum Equisetum telmateia Equisetum telmateia ssp. braunii Equisetum variegatum Equisetum variegatum ssp. alaskanum Equisetum variegatum ssp. variegatum Equisetum x ferrissii Equisetum x font-queri Equisetum x litorale Equisetum x mackaii Eragrostis cilianensis Eragrostis curvula Eragrostis mexicana Eragrostis mexicana ssp. mexicana Eragrostis mexicana ssp. virescens Eragrostis minor Eragrostis pectinacea Eragrostis pectinacea var. pectinacea Eragrostis pilosa Eragrostis pilosa var. pilosa Eragrostis tef Erechtites hieraciifolia Eremogone capillaris Eremogone capillaris var. americana Eremopyrum orientale Eremopyrum triticeum Erica cinerea Ericameria bloomeri Ericameria nauseosa Ericameria nauseosa var. speciosa Erigeron acris Erigeron acris var. kamtschaticus Erigeron annuus Erigeron aureus Erigeron caespitosus Erigeron compositus Erigeron corymbosus Erigeron denalii Erigeron divergens Erigeron elatus Erigeron filifolius Erigeron flagellaris Erigeron glabellus Erigeron glabellus var. pubescens Erigeron glacialis var. glacialis Erigeron grandiflorus Erigeron humilis Erigeron lanatus Erigeron leibergii Erigeron linearis Erigeron lonchophyllus Erigeron nivalis Erigeron ochroleucus Erigeron pallens Erigeron peregrinus Erigeron peregrinus ssp. callianthemus Erigeron peregrinus ssp. peregrinus Erigeron peregrinus var. peregrinus Erigeron philadelphicus Erigeron philadelphicus var. glaber Erigeron philadelphicus var. philadelphicus Erigeron poliospermus Erigeron poliospermus var. poliospermus Erigeron pumilus Erigeron pumilus var. intermedius Erigeron salishii Erigeron speciosus Erigeron strigosus Erigeron strigosus var. strigosus Erigeron trifidus Erigeron uniflorus Erigeron uniflorus var. eriocephalus Eriogonum androsaceum Eriogonum flavum Eriogonum flavum var. piperi Eriogonum heracleoides Eriogonum heracleoides var. angustifolium Eriogonum heracleoides var. heracleoides Eriogonum heracleoides var. leucophaeum Eriogonum niveum Eriogonum ovalifolium Eriogonum ovalifolium var. nivale Eriogonum pyrolifolium Eriogonum pyrolifolium var. coryphaeum Eriogonum umbellatum Eriogonum umbellatum var. majus Eriogonum umbellatum var. umbellatum Eriophorum angustifolium Eriophorum brachyantherum Eriophorum callitrix Eriophorum chamissonis Eriophorum chamissonis var. albidum Eriophorum chamissonis var. chamissonis Eriophorum gracile Eriophorum scheuchzeri Eriophorum scheuchzeri ssp. scheuchzeri Eriophorum vaginatum Eriophorum vaginatum ssp. vaginatum Eriophorum virginicum Eriophorum viridicarinatum Eriophyllum lanatum Eriophyllum lanatum var. leucophyllum Erodium cicutarium Erodium cicutarium ssp. cicutarium Erodium moschatum Eruca vesicaria Eruca vesicaria ssp. sativa Erucastrum gallicum Eryngium giganteum Eryngium planum Erysimum arenicola Erysimum arenicola var. torulosum Erysimum asperum Erysimum capitatum Erysimum capitatum var. purshii Erysimum cheiranthoides Erysimum cheiri Erysimum coarctatum Erysimum inconspicuum Erysimum pallasii Erysimum repandum Erythranthe alsinoides Erythranthe arvensis Erythranthe breviflora Erythranthe breweri Erythranthe caespitosa Erythranthe decora Erythranthe dentata Erythranthe floribunda Erythranthe guttata Erythranthe lewisii Erythranthe microphylla Erythranthe moschata Erythranthe nasuta Erythranthe patula Erythranthe ptilota Erythranthe scouleri Erythranthe sookensis Erythranthe suksdorfii Erythranthe tilingii Erythronium grandiflorum Erythronium grandiflorum ssp. grandiflorum Erythronium montanum Erythronium oregonum Erythronium oregonum ssp. oregonum Erythronium revolutum Eschscholzia californica Eucephalus engelmannii Eucephalus paucicapitatus Euonymus occidentalis Euonymus occidentalis var. occidentalis Eupatorium altissimum Eupatorium cannabinum Euphorbia characias Euphorbia cyparissias Euphorbia esula Euphorbia glyptosperma Euphorbia helioscopia Euphorbia lathyris Euphorbia maculata Euphorbia marginata Euphorbia myrsinites Euphorbia oblongata Euphorbia peplus Euphorbia serpens Euphorbia serpyllifolia var. serpyllifolia Euphorbia serrulata Euphorbia vermiculata Euphrasia stricta Euphrasia subarctica Eurybia conspicua Eurybia merita Eurybia radulina Eurybia sibirica Euthamia graminifolia Euthamia occidentalis Eutrema edwardsii Eutrema salsugineum Eutrochium maculatum Eutrochium maculatum var. bruneri Eutrochium maculatum var. maculatum Fagopyrum esculentum Fagopyrum tataricum Fallopia baldschuanica Fallopia convolvulus Fallopia dumetorum Festuca altaica Festuca baffinensis Festuca brachyphylla Festuca campestris Festuca cinerea Festuca filiformis Festuca heterophylla Festuca idahoensis Festuca minutiflora Festuca occidentalis Festuca ovina Festuca pseudovivipara Festuca roemeri Festuca roemeri var. roemeri Festuca rubra Festuca rubra ssp. arctica Festuca rubra ssp. aucta Festuca rubra ssp. commutata Festuca rubra ssp. fallax Festuca rubra ssp. mediana Festuca rubra ssp. pruinosa Festuca rubra ssp. rubra Festuca rubra ssp. secunda Festuca rubra ssp. vallicola Festuca saximontana Festuca saximontana var. purpusiana Festuca saximontana var. robertsiana Festuca saximontana var. saximontana Festuca subulata Festuca subuliflora Festuca trachyphylla Festuca viridula Festuca viviparoidea Festuca viviparoidea ssp. krajinae Festuca washingtonica Ficaria verna Filago vulgaris Filipendula ulmaria Filipendula vulgaris Floerkea proserpinacoides Foeniculum vulgare Forsythia x intermedia Fragaria chiloensis Fragaria chiloensis ssp. lucida Fragaria chiloensis ssp. pacifica Fragaria vesca Fragaria vesca ssp. americana Fragaria vesca ssp. bracteata Fragaria virginiana Fragaria virginiana ssp. glauca Fragaria virginiana ssp. platypetala Fragaria x ananassa ssp. cuneifolia Fragaria x ananassa var. ananassa Fragaria x ananassa var. cuneifolia Frangula purshiana Frangula purshiana ssp. purshiana Fraxinus excelsior Fraxinus latifolia Fraxinus ornus Fraxinus pennsylvanica Fritillaria affinis Fritillaria affinis var. affinis Fritillaria camschatcensis Fritillaria pudica Fuchsia magellanica Fumaria muralis Fumaria officinalis Fumaria reuteri Gadellia lactiflora Gaillardia aristata Galanthus elwesii Galanthus nivalis Galearis rotundifolia Galega officinalis Galeopsis bifida Galeopsis speciosa Galeopsis tetrahit Galinsoga parviflora Galinsoga parviflora var. parviflora Galinsoga quadriradiata Galium anglicum Galium aparine Galium bifolium Galium boreale Galium divaricatum Galium kamtschaticum Galium labradoricum Galium mollugo Galium murale Galium odoratum Galium palustre Galium spurium Galium trifidum Galium trifidum ssp. columbianum Galium trifidum ssp. subbiflorum Galium trifidum ssp. trifidum Galium triflorum Galium verum Gamochaeta pensylvanica Gamochaeta ustulata Gaultheria hispidula Gaultheria humifusa Gaultheria ovatifolia Gaultheria shallon Gaura lindheimeri Gaura mollis Gayophytum diffusum Gayophytum diffusum ssp. parviflorum Gayophytum humile Gayophytum racemosum Gayophytum ramosissimum Genista monspessulana Genista pilosa Genista sagittalis Genista tinctoria Gentiana affinis Gentiana affinis var. affinis Gentiana calycosa Gentiana douglasiana Gentiana glauca Gentiana platypetala Gentiana prostrata Gentiana sceptrum Gentianella amarella Gentianella amarella ssp. acuta Gentianella propinqua Gentianella propinqua ssp. propinqua Gentianella tenella Gentianella tenella ssp. tenella Gentianopsis virgata Gentianopsis virgata ssp. macounii Geocaulon lividum Geranium bicknellii Geranium carolinianum Geranium columbinum Geranium dissectum Geranium erianthum Geranium lucidum Geranium macrorrhizum Geranium molle Geranium pratense Geranium pusillum Geranium pyrenaicum Geranium pyrenaicum ssp. pyrenaicum Geranium richardsonii Geranium robertianum Geranium sanguineum Geranium sibiricum Geranium viscosissimum Geranium viscosissimum var. viscosissimum Geum aleppicum Geum calthifolium Geum macrophyllum Geum macrophyllum var. macrophyllum Geum macrophyllum var. perincisum Geum rivale Geum rossii Geum rossii var. rossii Geum schofieldii Geum triflorum Geum triflorum var. ciliatum Geum triflorum var. triflorum Gilia achilleifolia Gilia capitata Gilia capitata var. capitata Gilia sinuata Githopsis specularioides Glandularia x hybrida Glechoma hederacea Glehnia littoralis Glehnia littoralis ssp. leiocarpa Glyceria borealis Glyceria canadensis Glyceria canadensis var. canadensis Glyceria declinata Glyceria elata Glyceria fluitans Glyceria grandis Glyceria grandis var. grandis Glyceria leptostachya Glyceria maxima Glyceria pulchella Glyceria striata Glyceria x occidentalis Glycyrrhiza lepidota Gnaphalium palustre Gnaphalium uliginosum Goodyera oblongifolia Goodyera repens Graphephorum wolfii Gratiola ebracteata Gratiola neglecta Grindelia hirsutula Grindelia hirsutula var. hirsutula Grindelia squarrosa Grindelia squarrosa var. quasiperennis Grindelia squarrosa var. serrulata Grindelia squarrosa var. squarrosa Grindelia stricta Guizotia abyssinica Gymnocarpium continentale Gymnocarpium disjunctum Gymnocarpium dryopteris Gymnocarpium jessoense Gymnocarpium x intermedium Gypsophila elegans Gypsophila muralis Gypsophila paniculata Gypsophila scorzonerifolia Hackelia ciliata Hackelia deflexa Hackelia deflexa ssp. americana Hackelia diffusa Hackelia diffusa var. diffusa Hackelia floribunda Hackelia micrantha Halenia deflexa Halenia deflexa ssp. deflexa Halerpestes cymbalaria Harrimanella stelleriana Hedeoma hispida Hedera colchica Hedera helix Hedera hibernica Hedysarum alpinum Hedysarum boreale Hedysarum boreale ssp. boreale Hedysarum boreale ssp. mackenzii Hedysarum occidentale Hedysarum sulphurescens Helenium autumnale Helenium autumnale var. grandiflorum Helenium autumnale var. montanum Helenium flexuosum Helianthella uniflora Helianthella uniflora var. douglasii Helianthus annuus Helianthus maximiliani Helianthus nuttallii Helianthus nuttallii ssp. rydbergii Helianthus pauciflorus ssp. subrhomboideus Helianthus petiolaris Helianthus petiolaris ssp. petiolaris Helianthus rigidus Helianthus tuberosus Helianthus x laetiflorus Helictochloa hookeri Heliopsis helianthoides Heliopsis helianthoides var. scabra Helleborus foetidus Hemieva ranunculifolia Hemitomes congestum Hemizonella minima Heracleum mantegazzianum Heracleum maximum Heracleum sphondylium Herniaria glabra Hesperis matronalis Hesperochiron pumilus Hesperostipa comata Hesperostipa comata ssp. comata Hesperostipa comata ssp. intermedia Hesperostipa curtiseta Hesperostipa spartea Heteranthera dubia Heterocodon rariflorus Heterotheca subaxillaris Heterotheca subaxillaris ssp. subaxillaris Heterotheca villosa Heterotheca villosa var. minor Heterotheca villosa var. villosa Heuchera chlorantha Heuchera cylindrica Heuchera cylindrica var. cylindrica Heuchera cylindrica var. glabella Heuchera cylindrica var. orbicularis Heuchera cylindrica var. septentrionalis Heuchera glabra Heuchera micrantha Heuchera micrantha var. diversifolia Heuchera richardsonii Hibiscus trionum Hieracium albiflorum Hieracium canadense Hieracium flagellare Hieracium flagellare ssp. flagellare Hieracium floribundum Hieracium glomeratumDNU Hieracium gracile Hieracium inops Hieracium lachenalii Hieracium lactucella Hieracium laevigatum Hieracium maculatum Hieracium murorum Hieracium piloselloidesDNU Hieracium sabaudum Hieracium scouleri Hieracium triste Hieracium umbellatum Hieracium umbellatum ssp. umbellatum Hierochloe alpina Hippophae rhamnoides Hippuris lanceolata Hippuris montana Hippuris tetraphylla Hippuris vulgaris Holcus lanatus Holcus mollis Holodiscus discolor Holodiscus discolor var. discolor Holosteum umbellatum Holosteum umbellatum ssp. umbellatum Honckenya peploides Honckenya peploides ssp. major Hordeum brachyantherum Hordeum brachyantherum ssp. brachyantherum Hordeum jubatum Hordeum jubatum ssp. intermedium Hordeum jubatum ssp. jubatum Hordeum marinum Hordeum marinum ssp. gussoneanum Hordeum murinum Hordeum murinum ssp. glaucum Hordeum murinum ssp. leporinum Hordeum murinum ssp. murinum Hordeum vulgare Hornungia procumbens Hosackia gracilis Hosackia pinnata Hulteniella integrifolia Humulus lupulus Humulus lupulus var. lupulus Huperzia continentalis Huperzia continentallis Huperzia miyoshiana Huperzia occidentalis Huperzia selago Hyacinthoides hispanica Hyacinthoides non-scripta Hyacinthoides x massartiana Hydrocotyle ranunculoides Hydrocotyle sibthorpioides Hydrophyllum capitatum Hydrophyllum capitatum var. capitatum Hydrophyllum fendleri Hydrophyllum fendleri var. albifrons Hydrophyllum tenuipes Hylotelephium erythrostictum Hylotelephium telephioides Hylotelephium telephium Hymenophyllum wrightii Hyoscyamus niger Hypericum anagalloides Hypericum androsaemum Hypericum boreale Hypericum calycinum Hypericum ellipticum Hypericum kouytchense Hypericum maculatum Hypericum maculatum ssp. obtusiusculum Hypericum majus Hypericum mutilum Hypericum mutilum var. mutilum Hypericum perforatum Hypericum perforatum ssp. perforatum Hypericum scouleri Hypericum scouleri ssp. nortoniae Hypericum scouleri ssp. scouleri Hypochaeris glabra Hypochaeris radicata Hypopitys monotropa Iberis sempervirens Iberis umbellata Idahoa scapigera Ilex aquifolium Ilex x altaclerensis Iliamna rivularis Illecebrum verticillatum Impatiens aurella Impatiens capensis Impatiens ecornuta Impatiens glandulifera Impatiens noli-tangere Impatiens parviflora Inula helenium Ionactis stenomeres Ionopsidium acaule Ipomoea hederacea Ipomoea purpurea Ipomopsis aggregata Ipomopsis aggregata var. aggregata Iris germanica Iris missouriensis Iris pseudacorus Iris sibirica Iris versicolor Iris x germanica Isatis tinctoria Isoetes howellii Isoetes maritima Isoetes minima Isoetes nuttallii Isoetes occidentalis Isoetes tenella Isoetes x marensis Isoetes x pseudotruncata Isoetes x truncata Isolepis cernua Isolepis pseudosetacea Isolepis setacea Isotoma fluviatilis Iva axillaris Jacobaea vulgaris Jasione montana Jaumea carnosa Jovibarba globifera Juglans ailantifolia Juglans regia Juncus acuminatus Juncus alpinoarticulatus Juncus anthelatus Juncus arcticus Juncus arcticus ssp. alaskanus Juncus articulatus Juncus balticus Juncus balticus ssp. ater Juncus biglumis Juncus bolanderi Juncus brevicaudatus Juncus breweri Juncus bufonius Juncus bufonius var. bufonius Juncus bufonius var. occidentalis Juncus bulbosus Juncus canadensis Juncus castaneus Juncus castaneus ssp. castaneus Juncus compressus Juncus confusus Juncus conglomeratus Juncus covillei Juncus drummondii Juncus drummondii var. drummondii Juncus drummondii var. subtriflorus Juncus dudleyi Juncus effusus Juncus effusus ssp. effusus Juncus effusus ssp. pacificus Juncus effusus ssp. solutus Juncus ensifolius Juncus ensifolius var. ensifolius Juncus ensifolius var. montanus Juncus falcatus Juncus falcatus ssp. sitchensis Juncus filiformis Juncus gerardii Juncus gerardii var. gerardii Juncus haenkei Juncus hemiendytus Juncus hemiendytus var. hemiendytus Juncus hesperius Juncus interior Juncus kelloggii Juncus laccatus Juncus longistylis Juncus marginatus Juncus mertensianus Juncus nevadensis Juncus nevadensis var. inventus Juncus nevadensis var. nevadensis Juncus nodosus Juncus occidentalis Juncus oxymeris Juncus parryi Juncus pelocarpus Juncus pylaei Juncus regelii Juncus saximontanus Juncus squarrosus Juncus stygius Juncus stygius var. americanus Juncus supiniformis Juncus tenuis Juncus torreyi Juncus triglumis ssp. albescens Juncus triglumis ssp. triglumis Juncus vaseyi Juniperus communis Juniperus communis var. charlottensis Juniperus communis var. depressa Juniperus communis var. kelleyi Juniperus horizontalis Juniperus maritima Juniperus scopulorum Kalmia microphylla Kalmia microphylla ssp. microphylla Kalmia microphylla var. microphylla Kalmia microphylla var. occidentalis Kalmia procumbens Kickxia elatine Kickxia spuria Knautia arvensis Kobresia myosuroides Kobresia sibirica Kobresia simpliciuscula Koeleria macrantha Koenigia islandica Koenigia polystachya Kolkwitzia amabilis Kopsiopsis hookeri Krigia virginica Laburnum anagyroides Lactuca biennis Lactuca canadensis Lactuca ludoviciana Lactuca serriola Lamium amplexicaule Lamium galeobdolon Lamium maculatum Lamium purpureum Lamium purpureum var. incisum Lamium purpureum var. purpureum Lappula fremontii Lappula montana Lappula occidentalis Lappula occidentalis var. cupulata Lappula occidentalis var. occidentalis Lappula occidentalis var. stricta Lappula squarrosa Lapsana communis Larix laricina Larix lyallii Larix occidentalis Lasthenia glaberrima Lasthenia maritima Lathrocasis tenerrima Lathyrus japonicus Lathyrus japonicus var. maritimus Lathyrus lanszwertii Lathyrus lanszwertii var. bijugatus Lathyrus latifolius Lathyrus littoralis Lathyrus nevadensis Lathyrus nevadensis var. nevadensis Lathyrus ochroleucus Lathyrus palustris Lathyrus pratensis Lathyrus sphaericus Lathyrus sylvestris Lavandula angustifolia Leersia oryzoides Lemna minor Lemna minuta Lemna trisulca Lemna turionifera Lens culinaris Leontodon saxatilis Leontodon saxatilis ssp. saxatilis Leonurus cardiaca Leonurus quinquelobatus Lepidium appelianum Lepidium bourgeauanum Lepidium campestre Lepidium chalepense Lepidium densiflorum Lepidium didymum Lepidium draba Lepidium heterophyllum Lepidium latifolium Lepidium oxycarpum Lepidium perfoliatum Lepidium ramosissimum Lepidium ruderale Lepidium sativum Lepidium virginicum Lepidium virginicum ssp. menziesii Lepidium virginicum var. menziesii Leptarrhena pyrolifolia Leptochloa fusca Leptochloa fusca ssp. uninervia Leptosiphon harknessii Leptosiphon minimus Leptosiphon septentrionalis Leucanthemella serotina Leucanthemum maximum Leucanthemum vulgare Lewisia columbiana Lewisia columbiana var. columbiana Lewisia columbiana var. rupicola Lewisia pygmaea Lewisia pygmaea var. pygmaea Lewisia rediviva Lewisia rediviva var. rediviva Lewisia triphylla Lewisiopsis tweedyi Leymus cinereus Leymus innovatus Leymus innovatus ssp. innovatus Leymus mollis Leymus mollis ssp. mollis Leymus x vancouverensis Liatris punctata Ligusticum calderi Ligusticum canbyi Ligusticum scoticum Ligusticum scoticum ssp. hultenii Ligustrum amurense Ligustrum vulgare Lilaeopsis occidentalis Lilium columbianum Lilium lancifolium Lilium philadelphicum Lilium philadelphicum var. andinum Limnanthes douglasii Limnanthes macounii Limosella acaulis Limosella aquatica Linanthus pungens Linaria genistifolia Linaria genistifolia ssp. dalmatica Linaria maroccana Linaria pinifolia Linaria purpurea Linaria vulgaris Lindernia dubia Lindernia dubia var. anagallidea Lindernia dubia var. dubia Linnaea borealis Linnaea borealis ssp. borealis Linnaea borealis ssp. longiflora Linum bienne Linum catharticum Linum lewisii Linum lewisii ssp. lewisii Linum perenne Linum usitatissimum Lipandra polysperma Lipandra polysperma var. acutifolia Liparis loeselii Lipocarpha micrantha Lithophragma glabrum Lithophragma parviflorum Lithophragma parviflorum var. parviflorum Lithophragma tenellum Lithophragma thompsonii Lithospermum arvense Lithospermum incisum Lithospermum officinale Lithospermum ruderale Lloydia serotina Lloydia serotina var. flava Lloydia serotina var. serotina Lobelia dortmanna Lobelia erinus Lobelia inflata Lobelia kalmii Lobelia siphalitica Lobularia maritima Logfia arvensis Logfia minima Lolium multiflorum Lolium perenne Lolium persicum Lomatium ambiguum Lomatium brandegeei Lomatium dissectum Lomatium dissectum var. dissectum Lomatium foeniculaceum Lomatium foeniculaceum var. foeniculaceum Lomatium geyeri Lomatium macrocarpum Lomatium martindalei Lomatium martindalei var. angustatum Lomatium martindalei var. flavum Lomatium multifidum Lomatium nudicaule Lomatium papilioniferum Lomatium sandbergii Lomatium simplex Lomatium triternatum Lomatium triternatum ssp. platycarpum Lomatium triternatum ssp. triternatum Lomatium utriculatum Lomatogonium rotatum Lonicera acuminata Lonicera caprifolium Lonicera ciliosa Lonicera dioica Lonicera dioica var. glaucescens Lonicera hispidula Lonicera involucrata Lonicera involucrata var. involucrata Lonicera morrowii Lonicera periclymenum Lonicera tatarica Lonicera utahensis Lonicera xylosteum Lotus corniculatus Lotus krylovii Lotus tenuis Lotus uliginosus Lotus unifoliolatus Ludwigia palustris Luetkea pectinata Luina hypoleuca Lunaria annua Lupinus angustifolius Lupinus arboreus Lupinus arbustus Lupinus arbustus ssp. pseudoparviflorus Lupinus arcticus Lupinus arcticus ssp. arcticus Lupinus arcticus ssp. subalpinus Lupinus argenteus var. laxiflorus Lupinus bicolor Lupinus bingenensis Lupinus bingenensis var. subsaccatus Lupinus burkei Lupinus densiflorus Lupinus densiflorus var. densiflorus Lupinus depressus Lupinus formosus Lupinus kuschei Lupinus latifolius Lupinus latifolius var. latifolius Lupinus lepidus Lupinus leucophyllus Lupinus leucophyllus var. leucophyllus Lupinus littoralis Lupinus luteus Lupinus lyallii Lupinus microcarpus var. microcarpus Lupinus nanus ssp. nanus Lupinus nootkatensis Lupinus nootkatensis var. fruticosus Lupinus nootkatensis var. nootkatensis Lupinus oreganus Lupinus oreganus var. kincaidii Lupinus polycarpus Lupinus polyphyllus Lupinus polyphyllus ssp. polyphyllus Lupinus polyphyllus var. polyphyllus Lupinus rivularis Lupinus sericeus Lupinus sericeus var. sericeus Lupinus sulphureus Luzula arcuata Luzula arcuata ssp. unalaschcensis Luzula campestris Luzula campestris ssp. campestris Luzula comosa Luzula comosa var. comosa Luzula comosa var. laxa Luzula confusa Luzula fastigiata Luzula hitchcockii Luzula macrantha Luzula multiflora Luzula multiflora ssp. frigida Luzula multiflora ssp. multiflora Luzula nivalis Luzula nivea Luzula parviflora Luzula parviflora ssp. fastigiata Luzula parviflora ssp. parviflora Luzula piperi Luzula rufescens Luzula spicata Luzula subsessilis Lycium barbarum Lycium chinense Lycopersicon esculentum Lycopodiella inundata Lycopodium annotinum Lycopodium clavatum Lycopodium clavatum var. clavatum Lycopodium lagopus Lycopus americanus Lycopus asper Lycopus europaeus Lycopus uniflorus Lygodesmia juncea Lysichiton americanus Lysimachia arvensis Lysimachia ciliata Lysimachia europaea Lysimachia latifolia Lysimachia maritima Lysimachia minima Lysimachia nummularia Lysimachia punctata Lysimachia terrestris Lysimachia thyrsiflora Lysimachia verticillaris Lysimachia vulgaris Lythrum alatum Lythrum hyssopifolia Lythrum portula Lythrum salicaria Madia exigua Madia glomerata Madia gracilis Madia sativa Maianthemum canadense Maianthemum dilatatum Maianthemum racemosum Maianthemum racemosum ssp. amplexicaule Maianthemum stellatum Maianthemum trifolium Malaxis brachypoda Malaxis diphyllos Malaxis paludosa Malus baccata Malus fusca Malus hupehensis Malus prunifolia Malus pumila Malus x dawsoniana Malva alcea Malva moschata Malva neglecta Malva parviflora Malva pusilla Malva sylvestris Malva verticillata Marah oregana Marrubium vulgare Marsilea vestita Matricaria chamomilla Matricaria discoidea Matteuccia struthiopteris Matteuccia struthiopteris var. pensylvanica Matthiola incana Meconella oregana Meconopsis cambrica Medicago arabica Medicago lupulina Medicago minima Medicago polymorpha Medicago sativa Medicago sativa ssp. falcata Medicago sativa ssp. sativa Megalodonta beckii Melampyrum lineare Melampyrum lineare var. lineare Melica bulbosa Melica fugax Melica harfordii Melica smithii Melica spectabilis Melica subulata Melilotus albus Melilotus indica Melilotus officinalis Melilotus sulcatus Melissa officinalis Mentha aquatica Mentha arvensis Mentha canadensis Mentha cervina Mentha longifolia Mentha longifolia ssp. longifolia Mentha pulegium Mentha requienii Mentha spicata Mentha suaveolens Mentha x gracilis Mentha x piperita Mentha x verticillata Mentha x villosa Mentzelia albicaulis Mentzelia dispersa Mentzelia laevicaulis Mentzelia laevicaulis var. laevicaulis Mentzelia laevicaulis var. parviflora Menyanthes trifoliata Menziesia ferruginea Mertensia longiflora Mertensia maritima Mertensia maritima var. asiatica Mertensia oblongifolia Mertensia paniculata Mertensia paniculata var. borealis Mertensia paniculata var. paniculata Mibora minima Micranthes ferruginea Micranthes hieraciifolia Micranthes idahoensis Micranthes integrifolia Micranthes lyallii Micranthes nelsoniana Micranthes nelsoniana var. carlottae Micranthes nelsoniana var. cascadensis Micranthes nelsoniana var. pacifica Micranthes nelsoniana var. porsildiana Micranthes nidifica Micranthes nivalis Micranthes occidentalis Micranthes odontoloma Micranthes razshivinii Micranthes reflexa Micranthes rufidula Micranthes tenuis Micranthes tischii Micranthes tolmiei Microgilia minutiflora Micromeria graeca Micromeria graeca ssp. fruticulosa Microseris bigelovii Microseris borealis Microseris nutans Microsteris gracilis Microsteris gracilis var. gracilis Microsteris gracilis var. humilior Mimulus microphyllus Mimulus moschatus Minuartia macrocarpa Minuartia nuttallii Mirabilis albida Mirabilis hirsuta Mirabilis nyctaginea Miscanthus sinensis Miscanthus sinensis Misopates orontium Mitella nuda Mitellastra caulescens Moehringia lateriflora Moehringia macrophylla Moenchia erecta Moenchia erecta ssp. erecta Molinia caerulea Mollugo verticillata Monarda fistulosa Monarda fistulosa var. menthaefolia Monarda fistulosa var. mollis Monardella odoratissima Monardella odoratissima ssp. discolor Moneses uniflora Monotropa uniflora Montia bostockii Montia chamissoi Montia dichotoma Montia diffusa Montia fontana Montia howellii Montia linearis Montia parvifolia Montia parvifolia var. flagellaris Montia parvifolia var. parvifolia Morella californica Morus alba Muhlenbergia andina Muhlenbergia asperifolia Muhlenbergia filiformis Muhlenbergia glomerata Muhlenbergia mexicana Muhlenbergia mexicana var. mexicana Muhlenbergia racemosa Muhlenbergia richardsonis Muhlenbergia uniflora Mulgedium pulchellum Muscari armeniacum Muscari aucheri Muscari neglectum Mycelis muralis Myosotis arvensis Myosotis asiatica Myosotis discolor Myosotis laxa Myosotis scorpioides Myosotis stricta Myosotis sylvatica Myosotis verna Myosoton aquaticum Myosurus apetalus Myosurus apetalus var. borealis Myosurus minimus Myrica gale Myriophyllum aquaticum Myriophyllum farwellii Myriophyllum heterophyllum Myriophyllum hippuroides Myriophyllum pinnatum Myriophyllum quitense Myriophyllum sibiricum Myriophyllum spicatum Myriophyllum ussuriense Myriophyllum verticillatum Myriopteris gracilis Myriopteris gracillima Myrrhis odorata Najas flexilis Narcissus poeticus Narcissus pseudonarcissus Narcissus x incomparabilis Nassella tenuissima Nassella viridula Nasturtium microphyllum Nasturtium officinale Navarretia divaricata Navarretia divaricata ssp. divaricata Navarretia intertexta Navarretia propinqua Navarretia squarrosa Nemophila breviflora Nemophila parviflora Nemophila parviflora var. parviflora Nemophila pedunculata Neoholmgrenia andina Neottia banksiana Neottia borealis Neottia convallarioides Neottia cordata Nepeta cataria Nephrophyllidium crista-galli Neslia paniculata Nicandra physalodes Nicotiana alata Nicotiana attenuata Nicotiana langsdorffii Nicotiana quadrivalvis Nicotiana rustica Nicotiana sylvestris Nigella damascena Nonea vesicaria Nothocalais troximoides Nothochelone nemorosa Nothoscordum bivalve Nuphar polysepala Nuphar variegata Nuttallanthus canadensis Nuttallanthus texanus Nymphaea leibergii Nymphaea odorata Nymphaea odorata ssp. odorata Nymphaea tetragona Nymphaea x marliacea Nymphoides peltata Oemleria cerasiformis Oenanthe sarmentosa Oenothera biennis Oenothera curtiflora Oenothera glazioviana Oenothera macrocarpa ssp. macrocarpa Oenothera oakesiana Oenothera pallida Oenothera pallida ssp. pallida Oenothera perennis Oenothera stricta ssp. stricta Oenothera suffrutescens Oenothera villosa Oenothera villosa ssp. strigosa Oenothera villosa ssp. villosa Olsynium douglasii Olsynium douglasii var. douglasii Olsynium douglasii var. inflatum Omalotheca sylvatica Onobrychis viciifolia Onopordum acanthium Onopordum acanthium ssp. acanthium Ophioglossum petiolatum Ophioglossum pusillum Oplopanax horridus Opuntia fragilis Opuntia x columbiana Oreocarya glomerata Origanum heracleoticum Origanum vulgare Ornithogalum umbellatum Ornithopus perpusillus Orobanche californica Orobanche corymbosa Orobanche ludoviciana Orobanche ludoviciana ssp. ludoviciana Orthilia secunda Orthilia secunda var. obtusata Orthilia secunda var. secunda Orthocarpus barbatus Orthocarpus bracteosus Orthocarpus imbricatus Orthocarpus luteus Orthocarpus tenuifolius Oryzopsis asperifolia Osmorhiza berteroi Osmorhiza depauperata Osmorhiza occidentalis Osmorhiza purpurea Oxalis acetosella Oxalis corniculata Oxalis debilis var. corymbosa Oxalis dillenii Oxalis exilis Oxalis montana Oxalis oregana Oxalis stricta Oxybasis chenopodioides Oxybasis glauca ssp. glauca Oxybasis glauca ssp. salina Oxybasis glauca ssp.glauca Oxybasis macrosperma Oxybasis macrospermum Oxybasis rubra var. humilis Oxybasis rubra var. rubra Oxypolis occidentalis Oxyria digyna Oxytropis borealis Oxytropis borealis var. viscida Oxytropis campestris Oxytropis campestris var. cusickii Oxytropis campestris var. davisii Oxytropis campestris var. jordalii Oxytropis campestris var. spicata Oxytropis campestris var. varians Oxytropis deflexa Oxytropis deflexa var. foliolosa Oxytropis deflexa var. sericea Oxytropis huddelsonii Oxytropis maydelliana Oxytropis nigrescens Oxytropis nigrescens var. nigrescens Oxytropis nigrescens var. uniflora Oxytropis podocarpa Oxytropis scammaniana Oxytropis sericea Oxytropis sericea var. speciosa Oxytropis splendens Ozomelis trifida Packera cana Packera contermina Packera cymbalaria Packera indecora Packera macounii Packera ogotorukensis Packera pauciflora Packera paupercula Packera pseudaurea Packera pseudaurea var. pseudaurea Packera streptanthifolia Packera subnuda Packera subnuda var. moresbiensis Packera subnuda var. subnuda Panicum capillare Panicum dichotomiflorum Panicum dichotomiflorum ssp. dichotomiflorum Panicum miliaceum Panicum miliaceum ssp. miliaceum Panicum miliaceum ssp. ruderale Panicum rigidulum Panicum rigidulum ssp. rigidulum Papaver alboroseum Papaver argemone Papaver atlanticum Papaver croceum Papaver dubium Papaver kluanense Papaver nudicaule Papaver orientale Papaver pygmaeum Papaver radicatum Papaver rhoeas Papaver somniferum Parapholis incurva Parentucellia viscosa Parietaria hespera Parietaria hespera var. hespera Parietaria pensylvanica Parnassia fimbriata Parnassia kotzebuei Parnassia palustris Parnassia parviflora Parthenocissus vitacea Pascopyrum smithii Paspalum dilatatum Paspalum distichum Pastinaca sativa Paxistima myrsinites Pectiantia breweri Pectiantia ovalis Pectiantia pentandra Pectocarya penicillata Pedicularis bracteosa Pedicularis bracteosa var. bracteosa Pedicularis bracteosa var. latifolia Pedicularis capitata Pedicularis contorta Pedicularis contorta var. contorta Pedicularis groenlandica Pedicularis labradorica Pedicularis lanata Pedicularis lanata ssp. lanata Pedicularis langsdorffii ssp. arctica Pedicularis langsdorfii Pedicularis macrodonta Pedicularis oederi Pedicularis ornithorhyncha Pedicularis parviflora Pedicularis parviflora ssp. parviflora Pedicularis pennellii Pedicularis racemosa Pedicularis sudetica Pedicularis sudetica ssp. interior Pedicularis verticillata Pellaea breweri Pellaea gastonyi Pellaea glabella Pellaea glabella ssp. occidentalis Pellaea glabella ssp. simplex Pennisetum alopecuroides Penstemon albertinus Penstemon confertus Penstemon davidsonii Penstemon davidsonii var. davidsonii Penstemon davidsonii var. menziesii Penstemon ellipticus Penstemon eriantherus Penstemon eriantherus var. eriantherus Penstemon fruticosus Penstemon fruticosus var. fruticosus Penstemon fruticosus var. scouleri Penstemon gormanii Penstemon gracilis Penstemon lyallii Penstemon nitidus Penstemon nitidus var. nitidus Penstemon ovatus Penstemon procerus Penstemon procerus var. procerus Penstemon procerus var. tolmiei Penstemon pruinosus Penstemon richardsonii Penstemon richardsonii var. richardsonii Penstemon serrulatus Pentaglottis sempervirens Pentagramma triangularis Pentagramma triangularis ssp. triangularis Penthorum sedoides Perideridia gairdneri Perideridia montana Perilla frutescens var. crispa Perilla frutescens var. frutescens Peritoma serrulata Perovskia atriplicifolia Persicaria amphibia Persicaria amphibia var. emersa Persicaria amphibia var. stipulacea Persicaria hydropiper Persicaria hydropiperoides Persicaria lapathifolia Persicaria longiseta Persicaria maculosa Persicaria minor Persicaria nepalensis Persicaria orientalis Persicaria pensylvanica Persicaria perfoliata Persicaria punctata Persicaria wallichii Petasites frigidus Petasites frigidus var. frigidus Petasites frigidus var. nivalis Petasites frigidus var. palmatus Petasites frigidus var. sagittatus Petasites frigidus var. x vitifolius Petasites hybridus Petasites japonicus Petrorhagia nanteuilii Petrorhagia prolifera Petrorhagia saxifraga Petunia x atkinsiana Phacelia franklinii Phacelia hastata Phacelia hastata var. hastata Phacelia heterophylla Phacelia heterophylla ssp. virgata Phacelia heterophylla var. virgata Phacelia leptosepala Phacelia linearis Phacelia lyallii Phacelia ramosissima Phacelia ramosissima var. ramosissima Phacelia sericea Phacelia sericea var. ciliosa Phacelia sericea var. sericea Phacelia tanacetifolia Phalaris arundinacea Phalaris arundinacea var. arundinacea Phalaris arundinacea var. picta Phalaris canariensis Phalaris minor Phaseolus vulgaris Phegopteris connectilis Phemeranthus sediformis Philadelphus lewisii Phippsia algida Phleum alpinum Phleum pratense Phleum pratense ssp. pratense Phlox caespitosa Phlox diffusa Phlox diffusa ssp. longistylis Phlox longifolia Phlox speciosa Phlox speciosa ssp. occidentalis Phragmites australis Phragmites australis ssp. americanus Phragmites australis ssp. australis Phyllodoce empetriformis Phyllodoce glanduliflora Phyllodoce x intermedia Phyllospadix scouleri Phyllospadix serrulatus Phyllospadix torreyi Phyllostachys aurea Physalis alkekengi Physalis grisea Physalis longifolia var. longifolia Physalis peruviana Physalis philadelphica Physalis pubescens Physaria arctica Physaria didymocarpa Physaria didymocarpa ssp. didymocarpa Physaria douglasii Physaria douglasii ssp. douglasii Physocarpus capitatus Physocarpus malvaceus Physostegia parviflora Picea engelmannii Picea glauca Picea mariana Picea sitchensis Picea x albertiana Picea x lutzii Picris echioides Picris hieracioides Picris hieracioides ssp. hieracioides Pilosella aurantiaca Pilosella caespitosa Pilosella flagellaris Pilosella glomerata Pilosella officinarum Pilosella piloselloides Pilosella piloselloides ssp. praealta Pilosella x floribunda Pinguicula villosa Pinguicula vulgaris Pinguicula vulgaris ssp. macroceras Pinguicula vulgaris ssp. vulgaris Pinus albicaulis Pinus contorta Pinus contorta var. contorta Pinus contorta var. latifolia Pinus flexilis Pinus monticola Pinus ponderosa Pinus ponderosa var. ponderosa Pinus ponderosa var. scopulorum Pinus ponderosa var.scopulorum Pinus sylvestris Piperia elegans Piptatheropsis canadensis Piptatheropsis exigua Piptatheropsis micrantha Piptatheropsis pungens Pisum sativum Plagiobothrys cognatus Plagiobothrys cusickii Plagiobothrys figuratus Plagiobothrys figuratus ssp. figuratus Plagiobothrys hispidulus Plagiobothrys scouleri Plagiobothrys tenellus Plantago aristata Plantago canescens Plantago coronopus Plantago elongata Plantago eriopoda Plantago lanceolata Plantago macrocarpa Plantago major Plantago maritima Plantago media Plantago ovata Plantago patagonica Plantago psyllium Platanthera aquilonis Platanthera chorisiana Platanthera dilatata Platanthera dilatata var. albiflora Platanthera dilatata var. dilatata Platanthera dilatata var. leucostachys Platanthera elegans ssp. elegans Platanthera elongata Platanthera ephemerantha Platanthera huronensis Platanthera obtusata Platanthera obtusata ssp. obtusata Platanthera orbiculata Platanthera stricta Platanthera transversa Platanthera unalascensis Plectritis brachystemon Plectritis congesta Plectritis congesta ssp. congesta Plectritis macrocera Pleuropogon refractus Poa abbreviata Poa abbreviata ssp. pattersonii Poa alpina Poa alpina ssp. alpina Poa annua Poa arctica Poa arctica ssp. arctica Poa arctica ssp. lanata Poa bulbosa Poa bulbosa ssp. vivipara Poa compressa Poa confinis Poa cusickii Poa cusickii ssp. epilis Poa cusickii ssp. pallida Poa cusickii ssp. purpurascens Poa fendleriana Poa fendleriana ssp. fendleriana Poa fendleriana ssp. longiligula Poa glauca Poa glauca ssp. glauca Poa glauca ssp. rupicola Poa howellii Poa infirma Poa interior Poa laxa Poa laxa ssp. banffiana Poa laxiflora Poa leptocoma Poa lettermanii Poa macrantha Poa marcida Poa nemoralis Poa nemoralis ssp. nemoralis Poa palustris Poa paucispicula Poa pratensis Poa pratensis ssp. agassizensis Poa pratensis ssp. alpigena Poa pratensis ssp. angustifolia Poa pratensis ssp. colpodea Poa pratensis ssp. irrigata Poa pratensis ssp. pratensis Poa pseudoabbreviata Poa secunda Poa secunda ssp. juncifolia Poa secunda ssp. secunda Poa stenantha Poa stenantha var. stenantha Poa suksdorfii Poa supina Poa trivialis Poa wheeleri Podagrostis aequivalvis Podagrostis humilis Polemonium acutiflorum Polemonium boreale Polemonium californicum Polemonium elegans Polemonium micranthum Polemonium pulcherrimum Polemonium pulcherrimum var. pulcherrimum Polemonium villosissimum Polemonium viscosum Polycarpon tetraphyllum ssp. tetraphyllum Polycnemum arvense Polygala senega Polygala vulgaris Polygonum achoreum Polygonum arenastrum Polygonum austiniae Polygonum aviculare Polygonum buxiforme Polygonum douglasii Polygonum engelmannii Polygonum fowleri ssp. fowleri Polygonum humifusum ssp. caurianum Polygonum majus Polygonum minimum Polygonum neglectum Polygonum nuttallii Polygonum paronychia Polygonum perfoliatum Polygonum polygaloides Polygonum polygaloides ssp. confertiflorum Polygonum polygaloides ssp. kelloggii Polygonum ramosissimum ssp. prolificum Polygonum ramosissimum ssp. ramosissimum Polygonum rurivagum Polygonum sawatchense Polygonum sawatchense ssp. oblivium Polygonum spergulariiforme Polypodium amorphum Polypodium glycyrrhiza Polypodium hesperium Polypodium scouleri Polypodium sibiricum Polypogon fugax Polypogon interruptus Polypogon monspeliensis Polypogon viridis Polystichum andersonii Polystichum braunii Polystichum californicum Polystichum imbricans Polystichum imbricans ssp. imbricans Polystichum kruckebergii Polystichum lemmonii Polystichum lonchitis Polystichum munitum Polystichum scopulinum Polystichum setigerum Pontederia cordata Populus balsamifera Populus balsamifera ssp. balsamifera Populus deltoides Populus deltoides ssp. deltoides Populus deltoides ssp. monilifera Populus grandidentata Populus nigra Populus tremuloides Populus x canescens Portulaca oleracea Potamogeton alpinus Potamogeton amplifolius Potamogeton crispus Potamogeton epihydrus Potamogeton foliosus Potamogeton friesii Potamogeton gramineus Potamogeton illinoensis Potamogeton natans Potamogeton nodosus Potamogeton obtusifolius Potamogeton praelongus Potamogeton pusillus Potamogeton pusillus ssp. pusillus Potamogeton pusillus ssp. tenuissimus Potamogeton richardsonii Potamogeton robbinsii Potamogeton strictifolius Potamogeton zosteriformis Potentilla anglica Potentilla anserina Potentilla anserina ssp. anserina Potentilla anserina ssp. pacifica Potentilla arenosa ssp. arenosa Potentilla argentea Potentilla arguta Potentilla biennis Potentilla biflora Potentilla bimundorum Potentilla bipinnatifida Potentilla brunnescens Potentilla drummondii Potentilla egedii Potentilla elegans Potentilla flabellifolia Potentilla furcata Potentilla glaucophylla Potentilla glaucophylla var. glaucophylla Potentilla glaucophylla var. perdissecta Potentilla gracilis Potentilla gracilis var. fastigiata Potentilla gracilis var. flabelliformis Potentilla gracilis var. gracilis Potentilla hippiana Potentilla hippiana var. hippiana Potentilla hookeriana Potentilla hookeriana ssp. hookeriana Potentilla hyparctica ssp. elatior Potentilla hyparctica ssp. hyparctica Potentilla inclinata Potentilla jepsonii var. kluanensis Potentilla litoralis Potentilla nivea Potentilla nivea var. nivea Potentilla norvegica Potentilla ovina Potentilla ovina var. decurrens Potentilla ovina var. ovina Potentilla pensylvanica Potentilla pensylvanica var. pensylvanica Potentilla pulcherrima Potentilla recta Potentilla reptans Potentilla rivalis Potentilla rubricaulis Potentilla subgorodkovii Potentilla subvahliana Potentilla supina ssp. paradoxa Potentilla verna Potentilla villosa Potentilla villosula Poteridium occidentale Poterium sanguisorba var. polygamum Prenanthes alata Prenanthes racemosa Prenanthes sagittata Primula conjugens var. viscida Primula cuneifolia Primula cuneifolia ssp. saxifragifolia Primula cuneifolia ssp. saxifragifolia Primula egaliksensis Primula frigida Primula hendersonii Primula incana Primula jeffreyi Primula latiloba Primula mistassinica Primula pauciflora var. cusickii Primula pauciflora var. macrocarpa Primula pauciflora var. pauciflora Prosartes hookeri Prosartes hookeri var. oregana Prosartes smithii Prosartes trachycarpa Prunella vulgaris Prunella vulgaris ssp. lanceolata Prunella vulgaris ssp. vulgaris Prunus armeniaca Prunus avium Prunus cerasifera Prunus domestica Prunus emarginata Prunus laurocerasus Prunus lusitanica Prunus mahaleb Prunus padus Prunus pensylvanica Prunus persica Prunus persica var. persica Prunus serotina Prunus serotina var. serotina Prunus spinosa Prunus tomentosa Prunus virginiana Prunus virginiana ssp. demissa Prunus virginiana ssp. melanocarpa Prunus virginiana var. demissa Prunus x pugetensis Psathyrostachys juncea Pseudocherleria macrocarpa Pseudognaphalium luteoalbum Pseudognaphalium macounii Pseudognaphalium stramineum Pseudognaphalium thermale Pseudoroegneria spicata Pseudosasa japonica Pseudotsuga menziesii Pseudotsuga menziesii var. glauca Pseudotsuga menziesii var. menziesii Psilocarphus brevissimus Psilocarphus brevissimus var. brevissimus Psilocarphus elatior Psilocarphus tenellus Pteridium aquilinum Pteridium aquilinum var. latiusculum Pteridium aquilinum var. pubescens Pterospora andromedea Puccinellia distans Puccinellia nutkaensis Puccinellia nuttalliana Puccinellia pumila Pulsatilla nuttalliana Purshia tridentata Pyracantha coccinea Pyracantha fortuneana Pyrola aphylla Pyrola asarifolia Pyrola asarifolia ssp. asarifolia Pyrola asarifolia ssp. bracteata Pyrola chlorantha Pyrola crypta Pyrola dentata Pyrola elliptica Pyrola grandiflora Pyrola minor Pyrola picta Pyrrocoma carthamoides Pyrrocoma carthamoides var. carthamoides Pyrus communis Pyrus nivalis Pysalis peruviana Quercus garryana Quercus garryana var. garryana Quercus robur Quercus rubra Ranunculus abortivus Ranunculus acris Ranunculus alismifolius Ranunculus alismifolius var. alismifolius Ranunculus aquatilis Ranunculus aquatilis var. aquatilis Ranunculus aquatilis var. diffusus Ranunculus arcticus Ranunculus arvensis Ranunculus bulbosus Ranunculus californicus Ranunculus cardiophyllus Ranunculus eschscholtzii Ranunculus eschscholtzii var. eschscholtzii Ranunculus eschscholtzii var. eximius Ranunculus eschscholtzii var. suksdorfii Ranunculus flabellaris Ranunculus flammula Ranunculus flammula var. flammula Ranunculus flammula var. ovalis Ranunculus flammula var. reptans Ranunculus glaberrimus Ranunculus glaberrimus var. ellipticus Ranunculus glaberrimus var. glaberrimus Ranunculus gmelinii Ranunculus grayi Ranunculus hebecarpus Ranunculus hyperboreus Ranunculus inamoenus Ranunculus inamoenus var. inamoenus Ranunculus lobbii Ranunculus macounii Ranunculus nivalis Ranunculus occidentalis Ranunculus occidentalis var. brevistylis Ranunculus occidentalis var. hexasepalus Ranunculus occidentalis var. occidentalis Ranunculus orthorhynchus Ranunculus orthorhynchus var. orthorhynchus Ranunculus orthorhynchus var. platyphyllus Ranunculus parviflorus Ranunculus pedatifidus Ranunculus pensylvanicus Ranunculus pygmaeus Ranunculus repens Ranunculus rhomboideus Ranunculus sardous Ranunculus sceleratus Ranunculus sceleratus var. multifidus Ranunculus sceleratus var. sceleratus Ranunculus sulphureus Ranunculus uncinatus Ranunculus x heimburgerae Raphanus raphanistrum Raphanus sativus Rapistrum rugosum Ratibida columnifera Reseda alba Reseda lutea Reseda luteola Reseda odorata Reynoutria japonica Reynoutria japonica var. japonica Reynoutria sachalinensis Reynoutria x bohemica Rhamnus alnifolia Rhaponticum repens Rheum rhabarbarum Rhinanthus glaber Rhinanthus minor Rhinanthus minor ssp. groenlandicus Rhinanthus minor ssp. minor Rhodiola integrifolia Rhodiola integrifolia ssp. integrifolia Rhododendron albiflorum Rhododendron columbianum Rhododendron groenlandicum Rhododendron lapponicum Rhododendron macrophyllum Rhododendron tomentosum Rhododendron tomentosum ssp. decumbens Rhus glabra Rhus typhina Rhynchospora alba Rhynchospora capillacea Ribes acerifolium Ribes aureum Ribes aureum var. villosum Ribes bracteosum Ribes cereum Ribes cereum var. cereum Ribes cognatum Ribes divaricatum Ribes divaricatum var. divaricatum Ribes glandulosum Ribes hudsonianum Ribes hudsonianum var. hudsonianum Ribes hudsonianum var. petiolare Ribes inerme Ribes inerme var. inerme Ribes lacustre Ribes laxiflorum Ribes lobbii Ribes oxyacanthoides Ribes oxyacanthoides var. oxyacanthoides Ribes rubrum Ribes sanguineum Ribes sanguineum var. sanguineum Ribes triste Ribes viscosissimum Ribes watsonianum Robinia hispida Robinia hispida var. hispida Robinia pseudoacacia Robinia viscosa Romanzoffia sitchensis Romanzoffia tracyi Rorippa alpina Rorippa austriaca Rorippa barbareifolia Rorippa cantoniensis Rorippa curvipes Rorippa curvisiliqua Rorippa globosa Rorippa heterophylla Rorippa indica var. indica Rorippa microsperma Rorippa palustris Rorippa palustris ssp. hispida Rorippa palustris ssp. palustris Rorippa sylvestris Rorippa tenerrima Rosa acicularis Rosa acicularis ssp. sayi Rosa arkansana Rosa arkansana var. arkansana Rosa canina Rosa gymnocarpa Rosa gymnocarpa var. gymnocarpa Rosa multiflora Rosa nutkana Rosa nutkana ssp. macdougalii Rosa nutkana ssp. nutkana Rosa nutkana var. nutkana Rosa pisocarpa Rosa pisocarpa ssp. pisocarpa Rosa rubiginosa var. rubiginosa Rosa rugosa Rosa woodsii Rosa woodsii ssp. ultramontana Rosa woodsii ssp. woodsii Rotala ramosior Rubus allegheniensis Rubus allegheniensis var. allegheniensis Rubus arcticus Rubus arcticus ssp. acaulis Rubus arcticus ssp. stellatus Rubus armeniacus Rubus chamaemorus Rubus idaeus Rubus idaeus ssp. strigosus Rubus laciniatus Rubus lasiococcus Rubus leucodermis Rubus leucodermis var. leucodermis Rubus nivalis Rubus parviflorus Rubus parviflorus var. parviflorus Rubus pedatus Rubus phoenicolasius Rubus pubescens Rubus pubescens var. pubescens Rubus spectabilis Rubus ursinus Rubus ursinus ssp. macropetalus Rubus vestitus Rudbeckia hirta Rudbeckia hirta var. pulcherrima Rudbeckia laciniata Rudbeckia laciniata var. ampla Rumex acetosa Rumex acetosa ssp. acetosa Rumex acetosa ssp. thyrsiflorus Rumex acetosella Rumex aquaticus Rumex britannica Rumex californicus Rumex conglomeratus Rumex crispus Rumex flexuosus Rumex fueginus Rumex hydrolapathum Rumex lapponicus Rumex longifolius Rumex obtusifolius Rumex occidentalis Rumex patientia Rumex paucifolius Rumex persicarioides Rumex pseudonatronatus Rumex rugosus Rumex sanguineus Rumex stenophyllus Rumex thyrsiflorus Rumex transitorius Rumex triangulivalvis Rumex x pratensis Rupertia physodes Ruppia cirrhosa Ruppia maritima Sabulina austromontana Sabulina dawsonensis Sabulina elegans Sabulina macra Sabulina nuttallii var. nuttallii Sabulina pusilla Sabulina rubella Sabulina stricta Sagina apetala Sagina decumbens Sagina decumbens ssp. occidentalis Sagina japonica Sagina maxima Sagina maxima ssp. crassicaulis Sagina maxima ssp. maxima Sagina nivalis Sagina procumbens Sagina saginoides Sagittaria cuneata Sagittaria latifolia Sagittaria latifolia var. latifolia Salicornia depressa Salicornia rubra Salix alaxensis Salix alaxensis var. alaxensis Salix alaxensis var. longistylis Salix alba var. vitellina Salix amygdaloides Salix arbusculoides Salix arctica Salix athabascensis Salix barclayi Salix barrattiana Salix bebbiana Salix boothii Salix brachycarpa Salix brachycarpa var. brachycarpa Salix candida Salix cascadensis Salix cinerea Salix commutata Salix discolor Salix drummondiana Salix exigua Salix exigua var. exigua Salix exigua var. hindsiana Salix farriae Salix geyeriana Salix glauca Salix glauca var. acutifolia Salix glauca var. villosa Salix hookeriana Salix interior Salix lasiandra Salix lasiandra var. caudata Salix lasiandra var. lasiandra Salix maccalliana Salix melanopsis Salix myrtillifolia Salix niphoclada Salix nivalis Salix pedicellaris Salix petiolaris Salix petrophila Salix planifolia Salix polaris Salix prolixa Salix pseudomonticola Salix pseudomyrsinites Salix pulchra Salix purpurea Salix pyrifolia Salix raupii Salix reticulata Salix reticulata ssp. glabellicarpa Salix reticulata ssp. reticulata Salix richardsonii Salix scouleriana Salix serissima Salix sessilifolia Salix setchelliana Salix sitchensis Salix stolonifera Salix tweedyi Salix vestita Salix viminalis Salix x fragilis Salix x rubens Salix x sepulcralis Salpichroa origanifolia Salpiglossis sinuata Salsola collina Salsola tragus Salvia nemorosa Salvia officinalis Salvia plebeia Salvia pratensis Salvia reflexa Salvia verticillata Salvia x Sambucus cerulea Sambucus cerulea ssp. cerulea Sambucus racemosa Sambucus racemosa var. arborescens Sambucus racemosa var. leucocarpa Sambucus racemosa var. melanocarpa Sandbergia whitedii Sanguisorba annua Sanguisorba canadensis Sanguisorba menziesii Sanguisorba minor Sanguisorba officinalis Sanguisorba stipulata Sanicula arctopoides Sanicula bipinnatifida Sanicula crassicaulis Sanicula crassicaulis var. crassicaulis Sanicula crassicaulis var. tripartita Sanicula europaea Sanicula graveolens Sanicula marilandica Sanicula tripartita Saponaria ocymoides Saponaria officinalis Sarcocornia pacifica Sarracenia purpurea Sarracenia purpurea ssp. gibbosa Sarracenia purpurea ssp. purpurea Saussurea americana Saussurea angustifolia Saussurea angustifolia var. angustifolia Saussurea angustifolia var. yukonensis Saussurea nuda Saxifraga adscendens Saxifraga adscendens ssp. oregonensis Saxifraga aizoides Saxifraga austromontana Saxifraga bronchialis Saxifraga cernua Saxifraga cespitosa Saxifraga flagellaris Saxifraga flagellaris ssp. setigera Saxifraga funstonii Saxifraga granulata Saxifraga hirculus Saxifraga hirculus ssp. hirculus Saxifraga hyperborea Saxifraga mertensiana Saxifraga nidifica Saxifraga nivalis Saxifraga oppositifolia Saxifraga oppositifolia ssp. oppositifolia Saxifraga oppositifolia ssp. smalliana Saxifraga serpyllifolia Saxifraga taylorii Saxifraga tricuspidata Saxifraga tridactylites Scabiosa ochroleuca Sceptridium multifidum Schedonnardus paniculatus Schedonorus arundinaceus Schedonorus pratensis Scheuchzeria palustris Scheuchzeria palustris ssp. americana Schizachne purpurascens Schizachyrium scoparium var. scoparium Schizonepeta tenuifolia Schoenoplectiella saximontana Schoenoplectus acutus Schoenoplectus americanus Schoenoplectus pungens Schoenoplectus pungens var. longispicatus Schoenoplectus subterminalis Schoenoplectus tabernaemontani Schoenoplectus triqueter Scilla luciliae Scilla siberica Scirpus atrocinctus Scirpus atrovirens Scirpus cyperinus Scirpus georgianus Scirpus microcarpus Scirpus pallidus Scleranthus annuus Scleranthus annuus ssp. annuus Sclerochloa dura Scolochloa festucacea Scorzoneroides autumnalis Scrophularia californica Scrophularia californica var. oregana Scrophularia lanceolata Scrophularia nodosa Scutellaria angustifolia Scutellaria angustifolia ssp. angustifolia Scutellaria angustifolia ssp. micrantha Scutellaria galericulata Scutellaria lateriflora Secale cereale Securigera varia Sedum acre Sedum album Sedum divergens Sedum forsterianum Sedum hispanicum Sedum lanceolatum Sedum lanceolatum var. lanceolatum Sedum lanceolatum var. nesioticum Sedum oreganum Sedum oreganum ssp. oreganum Sedum oreganum ssp. tenue Sedum reflexum Sedum rupestre Sedum spathulifolium Sedum stenopetalum Sedum stenopetalum ssp. monanthum Sedum stenopetalum ssp. stenopetalum Sedum thartii Selaginella densa Selaginella rupestris Selaginella scopulorum Selaginella selaginoides Selaginella sibirica Selaginella standleyi Selaginella wallacei Senecio elmeri Senecio eremophilus Senecio eremophilus var. eremophilus Senecio fremontii Senecio fremontii var. fremontii Senecio hydrophiloides Senecio hydrophilus Senecio inaequidens Senecio integerrimus Senecio integerrimus var. exaltatus Senecio integerrimus var. ochroleucus Senecio leucanthemifolius ssp. vernalis Senecio lugens Senecio megacephalus Senecio pseudoarnica Senecio sheldonensis Senecio sylvaticus Senecio triangularis Senecio viscosus Senecio vulgaris Senecio x albescens Sericocarpus rigidus Setaria faberi Setaria italica Setaria pumila Setaria pumila ssp. pumila Setaria verticillata Setaria verticilliformis Setaria viridis Setaria viridis var. major Setaria viridis var. viridis Shepherdia argentea Shepherdia canadensis Sherardia arvensis Sibbaldia procumbens Sidalcea hendersonii Sidalcea oregana Sidalcea oregana ssp. oregana Silene acaulis Silene acaulis var. acaulis Silene acaulis var. subacaulescens Silene antirrhina Silene chalcedonica Silene conoidea Silene coronaria Silene csereii Silene dichotoma Silene dichotoma ssp. dichotoma Silene dioica Silene douglasii Silene douglasii var. douglasii Silene drummondii Silene drummondii var. drummondii Silene gallica Silene involucrata Silene involucrata ssp. involucrata Silene latifolia Silene menziesii Silene menziesii var. menziesii Silene menziesii var. viscosa Silene noctiflora Silene ostenfeldii Silene parryi Silene pendula Silene repens Silene scouleri Silene scouleri ssp. scouleri Silene spaldingii Silene uralensis Silene uralensis ssp. attenuata Silene vulgaris Silybum marianum Sinapis alba Sinapis arvensis Sisymbrium altissimum Sisymbrium linifolium Sisymbrium loeselii Sisymbrium officinale Sisymbrium orientale Sisyrinchium californicum Sisyrinchium idahoense Sisyrinchium idahoense var occidentale Sisyrinchium idahoense var. idahoense Sisyrinchium idahoense var. macounii Sisyrinchium idahoense var. occidentale Sisyrinchium idahoense var. segetum Sisyrinchium littorale Sisyrinchium montanum Sisyrinchium montanum var. montanum Sisyrinchium septentrionale Sium suave Smelowskia americana Smelowskia ovalis Solanum americanum Solanum carolinense Solanum dulcamara Solanum dulcamara var. dulcamara Solanum emulans Solanum lycopersicum Solanum nigrum Solanum nigrum ssp. nigrum Solanum nigrum ssp. schultesii Solanum physalifolium Solanum rostratum Solanum triflorum Solanum tuberosum Soldanella montana Solidago altissima Solidago altissima ssp. gilvocanescens Solidago bellidifolia Solidago canadensis Solidago elongata Solidago gigantea Solidago gigantea var. shinnersii Solidago glutinosa Solidago lepida Solidago lepida var. lepida Solidago lepida var. salebrosa Solidago missouriensis Solidago mollis Solidago multiradiata Solidago nemoralis Solidago nemoralis ssp. decemflora Solidago rugosa Solidago rugosa var. rugosa Solidago simplex Soliva sessilis Sonchus arvensis Sonchus arvensis ssp. arvensis Sonchus arvensis ssp. uliginosus Sonchus asper Sonchus oleraceus Sorbaria sorbifolia Sorbus aria Sorbus aucuparia Sorbus intermedia Sorbus scopulina Sorbus sitchensis Sorbus sitchensis var. grayi Sorbus sitchensis var. sitchensis Sorghum bicolor Sorghum bicolor ssp. bicolor Sorghum halepense Sparganium angustifolium Sparganium emersum Sparganium eurycarpum Sparganium fluctuans Sparganium hyperboreum Sparganium natans Spartina anglica Spartina densiflora Spartina gracilis Spartina patens Spartina pectinata Spartium junceum Spergula arvensis Spergularia canadensis Spergularia canadensis var. occidentalis Spergularia macrotheca Spergularia macrotheca var. macrotheca Spergularia rubra Spergularia rupicola Spergularia salina Spergularia salina var. salina Sphaeralcea coccinea Sphaeralcea coccinea var. coccinea Sphaeralcea munroana Sphenopholis intermedia Sphenopholis obtusata Spinachia oleracea Spiraea alba Spiraea alba var. latifolia Spiraea betulifolia Spiraea douglasii Spiraea douglasii ssp. douglasii Spiraea douglasii var. douglasii Spiraea douglasii var. menziesii Spiraea japonica Spiraea japonica var. fortunei Spiraea lucida Spiraea splendens Spiraea splendens var. splendens Spiraea stevenii Spiraea x pyramidata Spiranthes diluvialis Spiranthes romanzoffiana Spirodela polyrhiza Sporobolus airoides Sporobolus compositus Sporobolus compositus var. compositus Sporobolus cryptandrus Sporobolus neglectus Sporobolus vaginiflorus Sporobolus vaginiflorus var. vaginiflorus Stachys arvensis Stachys byzantina Stachys chamissonis Stachys chamissonis var. cooleyae Stachys mexicana Stachys palustris Stachys palustris ssp. pilosa Stellaria alsine Stellaria borealis Stellaria borealis ssp. borealis Stellaria borealis ssp. sitchana Stellaria calycantha Stellaria crassifolia Stellaria crispa Stellaria graminea Stellaria humifusa Stellaria longifolia Stellaria longipes Stellaria longipes ssp. longipes Stellaria longipes var. longipes Stellaria media Stellaria nitens Stellaria obtusa Stellaria pallida Stellaria umbellata Stephanomeria tenuifolia Streptopus amplexifolius Streptopus lanceolatus Streptopus lanceolatus var. curvipes Streptopus streptopoides Streptopus streptopoides ssp. brevipes Struthiopteris spicant Stuckenia filiformis Stuckenia filiformis ssp. alpina Stuckenia filiformis ssp. filiformis Stuckenia filiformis ssp. occidentalis Stuckenia pectinata Stuckenia vaginata Suaeda calceoliformis Suaeda linifolia Subularia aquatica Subularia aquatica ssp. americana Suksdorfia violacea Swertia perennis Symphoricarpos albus Symphoricarpos albus var. albus Symphoricarpos albus var. laevigatus Symphoricarpos hesperius Symphoricarpos occidentalis Symphoricarpos oreophilus Symphoricarpos oreophilus var. utahensis Symphyotrichum boreale Symphyotrichum bracteolatum Symphyotrichum campestre Symphyotrichum chilense Symphyotrichum ciliatum Symphyotrichum ciliolatum Symphyotrichum cordifolium Symphyotrichum cusickii Symphyotrichum ericoides Symphyotrichum ericoides var. pansum Symphyotrichum falcatum Symphyotrichum falcatum var. commutatum Symphyotrichum falcatum var. falcatum Symphyotrichum foliaceum Symphyotrichum foliaceum var. apricum Symphyotrichum foliaceum var. foliaceum Symphyotrichum foliaceum var. parryi Symphyotrichum frondosum Symphyotrichum hendersonii Symphyotrichum laeve Symphyotrichum laeve var. geyeri Symphyotrichum laeve var. laeve Symphyotrichum lanceolatum Symphyotrichum lanceolatum ssp. hesperium Symphyotrichum lanceolatum ssp. lanceolatum var. lanceolatum Symphyotrichum lanceolatum var. hesperium Symphyotrichum lanceolatum var. lanceolatum Symphyotrichum lateriflorum Symphyotrichum novae-angliae Symphyotrichum novi-belgii Symphyotrichum novi-belgii var. novi-belgii Symphyotrichum pilosum Symphyotrichum pilosum var. pilosum Symphyotrichum praealtum Symphyotrichum puniceum Symphyotrichum puniceum var. puniceum Symphyotrichum spathulatum Symphyotrichum spathulatum var. intermedium Symphyotrichum subspicatum Symphyotrichum x columbianum Symphytum asperum Symphytum ibericum Symphytum officinale Symphytum x uplandicum Synthyris wyomingensis Syringa vulgaris Tanacetum bipinnatum Tanacetum bipinnatum ssp. huronense Tanacetum parthenium Tanacetum vulgare Tanecetum balsamita Taraxacum alaskanum Taraxacum ceratophorum Taraxacum erythrospermum Taraxacum hyparcticum Taraxacum officinale Taraxia breviflora Taxus baccata Taxus brevifolia Teesdalia nudicaulis Teline monspessulana Tellima grandiflora Tephroseris frigida Tephroseris lindstroemii Tephroseris newcombei Tephroseris palustris Tephroseris yukonensis Tetradymia canescens Teucrium canadense Teucrium canadense var. occidentale Teucrium scorodonia Thalictrum alpinum Thalictrum dasycarpum Thalictrum occidentale Thalictrum sparsiflorum Thalictrum venulosum Thelypodium laciniatum Thelypodium laciniatum var. laciniatum Thelypodium milleflorum Thelypteris nevadensis Thelypteris quelpaertensis Thermopsis rhombifolia Thinopyrum intermedium Thinopyrum intermedium ssp. barbulatum Thinopyrum intermedium ssp. intermedium Thinopyrum ponticum Thlaspi arvense Thlaspi macrophyllum Thuja plicata Thymus pulegioides Thymus serpyllum Thysanocarpus curvipes Tiarella trifoliata Tiarella trifoliata var. laciniata Tiarella trifoliata var. trifoliata Tiarella trifoliata var. unifoliata Tilia platyphyllos Tofieldia coccinea Tofieldia pusilla Tolmiea menziesii Tomostima reptans Tonella tenella Tonestus lyallii Torilis arvensis Torilis japonica Torreyochloa pallida Torreyochloa pallida var. pauciflora Townsendia hookeri Townsendia parryi Toxicodendron diversilobum Toxicodendron rydbergii Toxicoscordion venenosum var. gramineum Toxicoscordion venenosum var. venenosum Tragopogon dubius Tragopogon porrifolius Tragopogon pratensis Trautvetteria caroliniensis Triadenum fraseri Triantha glutinosa Triantha occidentalis Triantha occidentalis ssp. brevistyla Triantha occidentalis ssp. montana Tribulus terrestris Trichophorum alpinum Trichophorum cespitosum Trichophorum pumilum Trichostema oblongum Trientalis europaea Trientalis europaea ssp. arctica Trientalis latifolia Trifolium arvense Trifolium aureum Trifolium campestre Trifolium cyathiferum Trifolium depauperatum Trifolium depauperatum var. depauperatum Trifolium dichotomum Trifolium dubium Trifolium fragiferum Trifolium fragiferum ssp. bonannii Trifolium fucatum Trifolium glomeratum Trifolium hybridum Trifolium incarnatum Trifolium microcephalum Trifolium microdon Trifolium oliganthum Trifolium pratense Trifolium repens Trifolium resupinatum Trifolium striatum Trifolium subterraneum Trifolium variegatum Trifolium willdenovii Trifolium wormskioldii Triglochin concinna Triglochin concinna var. concinna Triglochin debilis Triglochin maritima Triglochin palustris Triglochin scilloides Trigonella caerulea Trigonotis peduncularis Trillium hibbersonii Trillium ovatum Trillium ovatum var. ovatum Triodanis perfoliata Triodanis perfoliata ssp. perfoliata Triphysaria pusilla Triphysaria versicolor Triphysaria versicolor ssp. versicolor Tripleurospermum inodorum Trisetum canescens Trisetum cernuum Trisetum spicatum Triteleia grandiflora Triteleia howellii Triteleia hyacinthina Triticum aestivum Trollius albiflorus Tsuga heterophylla Tsuga mertensiana Turritis glabra Tussilago farfara Typha angustifolia Typha latifolia Typha x glauca Ulex europaeus Ulmus americana Ulmus pumila Ulmus rubra Uropappus lindleyi Urtica dioica Urtica dioica ssp. dioica Urtica dioica ssp. gracilis Urtica urens Utricularia gibba Utricularia intermedia Utricularia minor Utricularia ochroleuca Utricularia vulgaris Utricularia vulgaris ssp. macrorhiza Vaccaria hispanica Vaccinium alaskaense Vaccinium caespitosum Vaccinium corymbosum Vaccinium deliciosum Vaccinium macrocarpon Vaccinium membranaceum Vaccinium microcarpum Vaccinium myrtilloides Vaccinium myrtillus Vaccinium ovalifolium Vaccinium ovatum Vaccinium oxycoccos Vaccinium parvifolium Vaccinium scoparium Vaccinium uliginosum Vaccinium uliginosum ssp. occidentale Vaccinium uliginosum ssp. pubescens Vaccinium vitis-idaea Vaccinium vitis-idaea ssp. minus Vahlodea atropurpurea Valeriana dioica Valeriana dioica var. sylvatica Valeriana edulis Valeriana edulis var. edulis Valeriana occidentalis Valeriana officinalis Valeriana scouleri Valeriana sitchensis Valerianella locusta Vallisneria americana Ventenata dubia Veratrum viride Veratrum viride var. eschscholzianum Verbascum blattaria Verbascum chaixii Verbascum lychnitis Verbascum nigrum Verbascum phlomoides Verbascum thapsus Verbascum virgatum Verbena bonariensis Verbena bracteata Verbena hastata Verbena hastata var. scabra Verbena officinalis Verbena urticifolia Verbena urticifolia var. urticifolia Veronica agrestis Veronica anagallis-aquatica Veronica arguteserrata Veronica arvensis Veronica austriaca Veronica austriaca ssp. vahlii Veronica beccabunga Veronica beccabunga var. americana Veronica catenata Veronica chamaedrys Veronica cusickii Veronica filiformis Veronica hederifolia Veronica nutans Veronica officinalis Veronica peregrina Veronica peregrina var. peregrina Veronica peregrina var. xalapensis Veronica persica Veronica scutellata Veronica serpyllifolia Veronica serpyllifolia var. humifusa Veronica serpyllifolia var. serpyllifolia Veronica verna Veronica wormskjoldii Veronica wormskjoldii var. wormskjoldii Viburnum edule Viburnum lantana Viburnum opulus Viburnum opulus var. americanum Viburnum opulus var. opulus Viburnum plicatum Viburnum tinus Vicia americana Vicia cracca Vicia cracca ssp. cracca Vicia hirsuta Vicia lathyroides Vicia nigricans Vicia nigricans var. gigantea Vicia sativa Vicia sativa var. angustifolia Vicia sativa var. sativa Vicia tetrasperma Vicia villosa Vicia villosa var. glabrescens Vicia villosa var. villosa Vinca major Vinca minor Viola adunca Viola adunca var. adunca Viola arvensis Viola biflora Viola biflora var. carlottae Viola canadensis Viola canadensis var. rugulosa Viola epipsila Viola epipsila var. repens Viola glabella Viola howellii Viola lanceolata Viola lanceolata ssp. lanceolata Viola langsdorffii Viola macloskeyi Viola nephrophylla Viola nephrophylla var. cognata Viola nephrophylla var. nephrophylla Viola odorata Viola orbiculata Viola palustris Viola palustris var. palustris Viola praemorsa Viola praemorsa var. praemorsa Viola purpurea Viola purpurea var. venosa Viola renifolia Viola riviniana Viola selkirkii Viola sempervirens Viola sororia Viola tricolor Viola tricolor var. tricolor Viola vallicola Viola vallicola var. major Viola x wittrockiana Vitis riparia Vitis vinifera Vitis x labruscana Vulpia bromoides Vulpia microstachys Vulpia microstachys var. microstachys Vulpia microstachys var. pauciflora Vulpia myuros Vulpia octoflora Wisteria chinensis Wolffia borealis Wolffia brasiliensis Wolffia columbiana Woodsia alpina Woodsia glabella Woodsia ilvensis Woodsia oregana Woodsia oregana ssp. oregana Woodsia scopulina Woodsia scopulina ssp. laurentiana Woodsia scopulina ssp. scopulina Woodwardia fimbriata x Elyhordeum macounii x Elyhordeum stebbinsianum x Elyleymus mossii x Elyleymus uclueletensis x Pseudelymus saxicola Xanthium spinosum Xanthium strumarium Xanthium strumarium var. canadense Xerophyllum tenax Yabea microcarpa Yucca filamentosa Zannichellia palustris Zeltnera exaltata Zeltnera muehlenbergii Zigadenus elegans ssp. elegans Zigadenus venenosus Zizania palustris Zizania palustris var. interior Zizia aptera Zizia aptera var. occidentalis Zostera japonica Zostera marina