Annual grass from fibrous roots, often in dense swards, drying and shrivelling by midsummer, all shoots flowering; stems 8-45 cm tall.
Sheaths smooth or hairy; blades 3-15 cm long, 0.7-2.5 mm wide, flat, becoming in-rolled; ligules 1.5-4 mm long.
Inflorescence very dense, cylindrical, more or less constricted, occasionally interrupted near the base, 2-12 cm long, the branches mainly appressed; spikelets numerous; glumes 2.5-5 mm long, the tips tapering gradually to long points; lemmas 1.5-2 mm long, rough short-hairy outside, the midribs extended at the tips into 2 teeth to 0.5 mm long, the awns 3.5-8 mm long from the middle on the back, bent, the callus hairs in dense tufts to 0.5 mm long; paleas absent or if present, as thin membranes to 0.2 mm long; anthers 0.4-0.6 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
||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
Synonyms and Alternate Names:
Agrostis inflata Scribn.
Agrostis microphylla var. intermedia Beetle