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

General:
Perennial grass from rhizomes; stems hollow, erect to decumbent, 10-60 cm tall.

Leaves:
Sheaths sometimes open half their length, sometimes closed to near the summit; blades 2-13 mm wide, flat, narrowed to prowlike tips; ligules 2-8 mm long, minutely more or less rough, jagged to nearly entire.

Flowers:
Inflorescence a panicle, (5) 7-20 cm long; spikelets usually 2-flowered, occasionally only 1-flowered, about 3 mm long; lower glumes 0.7-1.3 mm long, the upper ones 1.5-2.2 mm long; upper florets usually deciduous well before the lower; lemmas 2.5-3 mm long, prominently 3-nerved; rachilla joints usually at least 1 mm long; paleas as long as the lemmas; lodicules about 0.3 mm long; anthers about 1.5 mm long.