Annual grass from fibrous roots; stems densely hairy at the bases, 20-60 cm tall.
Sheaths usually open for 1-2 cm, densely soft-hairy; blades 2-5 mm wide, flat or slightly in-rolled, soft-hairy to short-hairy; ear-shaped lobes lacking at the leaf-bases; ligules hairy, eroded, 0.5-1.5 mm long.
Inflorescence a panicle, 4-12 cm long, with the branches and flowers more or less all to one side of the axis, the branches slender, lax, usually curved to reflexed, mostly bearing solitary spikelets; spikelets 9- to 15-flowered, compressed, cylindrical to egg-shaped, smooth, 15-30 mm long, 8-12 mm wide; florets mostly small, closed, self-fertilized; glumes lanceolate, the lower ones 3- to 5-nerved, 4-6 mm long, the upper ones (5-) 7- to 9-nerved, 7-9 mm long; lemmas inflated, 9-11 mm long, 2.8-4 mm wide, rounded at the tips, unawned, or with awn tips scarcely over 1 mm long; paleas 1-3 mm shorter than the lemmas; anthers, rarely exserted, about 0.8 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 Spring to Summer
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
|ICH(1), IDF(2), PP(4)|
Source: Klinkenberg 2013
Synonyms and Alternate Names:
Bromus brizaeformis Fischer & C. Meyer [orthographic variant]