E-Flora BC: Electronic Atlas of the Flora of British Columbia

Cinna latifolia (Trevis. ex Goepp.) Griseb.
nodding wood-reed (drooping woodreed; wood reedgrass)
Poaceae (Grass family)

Introduction to Vascular Plants

© Adolf Ceska  Email the photographer   (Photo ID #5681)

E-Flora BC Static Map
Distribution of Cinna latifolia
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Species Information

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Perennial grass from rhizomes; stems hollow, 70-200 cm tall.
Sheaths open, smooth or minutely rough; blades 7-15 mm wide, flat, lax; ligules 3-8 mm long, membranous, hairy, the margins jagged or usually more or less strongly torn.
Inflorescence a large, loose panicle 15-30 cm long, the branches spreading to drooping; spikelets 1-flowered, flattened, articulating below the glumes; florets stalked; glumes (2) 3-4 mm long, slender, 1-nerved, strongly keeled, long-pointed, the upper ones slightly longer than the lower, more or less minutely rough to short-hairy on the keels and often over the back; lemmas 2-3.2 mm long, strongly compressed, short-hairy over the backs, unawned or awned (sometimes in the same panicle), when present the awns subterminal, straight, up to nearly 1 mm long; paleas nearly as long as the lemmas, keeled; rachillas bristlelike, mostly about 0.6 mm long, prolonged behind the paleas; lodicules wedge- to egg-shaped, toothed, about 0.3 mm long; ovaries smooth; anthers about 1 mm long.

Source: The Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
Blooming Period:
Mid Summer
Fruit/Seed characteristics:
Colour: Brown
Present over the Summer
Source:  The USDA

Habitat / Range

Moist streamsides, meadows, clearings and forests from the lowland to montane zones; common throughout BC; circumpolar, N to AK, YT and SW NT, E to NF and S to ME, MA, PA, SC, TN, MN, SD, NM, UT, NV and CA; Eurasia.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Cinna latifolia

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




Elevation (metres) 1 924 2175
Slope Gradient (%) 0 9 110
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
0 35 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 5 8
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: BG(5), BWBS(67), CDF(4), CWH(143), ESSF(186), ICH(261), IDF(69), MH(20), MS(77), PP(9), SBPS(19), SBS(300), SWB(1)

Ecological Indicator Information

A shade-tolerant, sub montane to subalpine, circumpolar grass (transcontinental in North America). Occurs on fresh to very moist, nitrogen-rich soils within boreal, wet temperate, and cool mesothermal climates. Tolerates fluctuating groundwater tables. Sporadic to scattered in the herbaceous understory of broad-leaved forests on water-receiving (alluvial, floodplain, seepage, and stream-edge) sites. Often inhabits disturbed micro sites on and in recent cutover areas. A nitrophytic species characteristic of Moder and Mull humus forms.

SourceIndicator Plants of Coastal British Columbia (Information applies to coastal locations only)


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

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