Puccinellia nutkaensis (J. Presl) Fernald & Weath.
Pacific alkaligrass (Alaska alkaligrass; Nootka alkaligrass)
Poaceae (Grass family)

Introduction to Vascular Plants

Photograph

© Jamie Fenneman     (Photo ID #9842)


Map

E-Flora BC Static Map

Distribution of Puccinellia nutkaensis
Click here to view the full interactive map and legend

Species Information

General:
Perennial grass from fibrous roots, often more or less from stolons; stems 20-60 cm tall.
Leaves:
Sheaths open; blades lax, flat to somewhat in-rolled, 1-2 mm wide; ligules rounded, (1) 1.5-3.5 mm long.
Flowers:
Inflorescence a narrow panicle, (5) 8-15 cm long, the branches smooth or sometimes slightly rough, mostly erect, mostly only 1-3 cm long, the lower branches of the fruiting inflorescences usually erect to ascending, occasionally spreading; spikelets (4-) 5- to 6- (7-) flowered, spikelet stalks usually uniformly rough, occasionally nearly smooth and bearing a few scattered projections; florets apparently closed, self-fertile; glumes broad, usually one or both slightly jagged or more or less fringed with fine hairs toward the tips, the lower ones about 1.5 mm long, the upper ones mostly 2.2-2.5 mm long; rachilla joints slightly over 1 mm long; lemmas narrowed abruptly, entire below, more or less fringed with fine hairs to jagged or even lobed above, sparsely short-hairy near the base, 3-3.6 mm long, lemma tips sharp-pointed to broadly rounded, paleas nearly equal to the lemmas; lodicules 0.5-1 mm long; anthers 0.7-1.2 mm long, usually partially exserted.
Notes:
Puccinellia nutkaensis is sometimes barely distinct from P. nuttalliana, and like other named entities may represent an ecological race of the latter species. Larger plants in E and W North America have been recognized as P. lucida, but they are not consistently differentiable from P. nutkaensis.

SourceThe Illustrated Flora of British Columbia

Illustration

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Ecology

Ecological Framework for Puccinellia nutkaensis

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class

Avg

Min

Max

Elevation (metres)
702 440 1236
Slope Gradient (%)
3 0 10

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

42 8 332
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
6 5 7
Modal Nutrient Regime
Class
F
# of field plots
 species was recorded in:
8
Modal BEC Zone Class
IDF

All BEC Zones (# of stations/zone) species was recorded in

IDF(6), PP(2)

Habitat and Range

Beaches, tidal flats and marshes in the lowland zone; frequent in coastal BC; N to AK, E disjunctly to PQ and S to CA.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Phippsia nutkaensis (J. Presl) A. L÷ve & D. L÷ve
Puccinellia grandis Swallen
Puccinellia lucida Fernald & Weath.