General:
Perennial, densely tufted grass from fibrous roots, sometimes from short rhizomes less than 5 cm long; stems 4-30 cm tall.

Leaves:
Sheaths smooth; blades 3-7 cm long, less than 2 mm wide, flat, becoming folded; ligules 1-2.5 mm long.

Flowers:
Inflorescence narrowly cylindrical, more or less constricted, usually dense, 2-8 cm long, the branches ascending to erect or appressed, the lower ones 0.5-1.5 cm long, the spikelets numerous, few or none near the branch base; glumes 2-2.5 mm long, rough short-hairy on the keels, pointed; lemmas 1.5-2 mm long, awnless, the callus hairs sparse to abundant, to 0.2 mm long; paleas absent; anthers 0.5-0.7 mm long.

Notes:
See comments under A. humilis.

Source:  The Illustrated Flora of British Columbia

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

Synonyms and Alternate Names:
Agrostis rossiae Vasey