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

General:
Perennial grass from rhizomes, the rhizomes tough, elongate, connecting tufts; stems wiry, hollow, up to 110 cm tall.

Leaves:
Sheaths open, smooth; blades stiff, 2-4 mm wide, in-rolled, smooth; ligules 10-25 mm long, short-hairy, pointed, the margins entire but sometimes jagged.

Flowers:
Inflorescence a spikelike panicle, (10) 15-30 cm long, mostly 15-20 mm wide when pressed; glumes pale, 10-14 mm long, subequal, the upper ones longer; lemmas 8-13 mm long, shorter than the lower glumes, usually with the midribs barely continuing as short points just below the tips, the callus bearding 2-3 mm long; rachilla vestiges about 1.5 mm long; anthers about 4.5 mm long; lodicules about 1.5 mm long.