E-Flora BC: Electronic Atlas of the Flora of British Columbia

General:
Annual grass from fibrous roots, often in dense swards, drying and shrivelling by midsummer, all shoots flowering; stems 8-45 cm tall.

Leaves:
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.

Flowers:
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.