Perennial grass from rhizomes; stems 30-60 (100) cm tall.
Sheaths open; blades in-rolled, usually not over 5 mm wide at the base; ligules blunt, finely hairy, less than 1 mm long.
Inflorescence of 4 to 8, appressed spikes, 2-4 cm long; spikelets 1-flowered, in 2 rows on one side of axis; glumes narrowly lanceolate, 1-nerved, unequal, with long, fine hairs on the keels, the lower ones about 5-6 mm long, shorter than the florets, long-pointed to awn-tipped, the upper ones 2-3 mm longer, slightly exceeding the florets, more rounded; lemmas firm, obscurely nerved, keeled, fringed with fine hairs on the keels, awnless, 6.5-8.5 mm long.
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.
Illustration Source: The Illustrated Flora of British Columbia
Present from Summer to Fall
Source: The USDA
||Value / Class
Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
of field plots
species was recorded in:
BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in
|BG(6), IDF(16), PP(5)|
Source: Klinkenberg 2013