Perennial, tufted grass from fibrous roots; stems erect or decumbent, sometimes rooting at the lowest nodes, 30-90 (110) cm long/tall.
Sheaths open; blades flat, rough, mostly 3-10 mm wide; ligules of the lower leaves nearly entire, blunt, 1.5-2 mm long, those of the upper leaves finely jagged with fine hairs, sometimes more or less jagged, blunt to rounded, up to 6 mm long.
Inflorescence a cylindrical panicle, 3-10 cm long, the ends slightly tapered but not sharp-pointed (rounded); spikelets often over 4.5 mm long (excluding awns); glumes with the nerves and keels fringed with long, fine hairs, sharp-pointed, (4) 5 (6) mm long; lemmas smooth or hairy on the keels above, the margins fused for 1 mm or less, subequal to the glumes, sharp-pointed, awned, the awns inserted at about 1 mm above the base, abruptly bent, exserted 2-5 mm beyond the glumes; anthers 2.3-3.5 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 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
Source: Klinkenberg 2013