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General:
Annual grass from fibrous roots, tending to root at the nodes; stems hollow, erect, spreading, smooth or rarely slightly soft-hairy near the nodes, 10-60 cm tall.
Leaves:
Sheaths and collars smooth or nearly so; blades 2-4 (6) mm wide, flat, smooth to slightly rough short-hairy, sometimes with a few more or less minutely blistery hairs near the base, 2-4 mm long, the margins turned upward at the base and fused with the ligules; ligules 1-2 mm long, membranous, blunt, the margins nearly entire.
Flowers:
Inflorescence of (2) 3 to 6, fingerlike, linear racemes 3-7 (10) cm long, the spikelets mostly paired and in 2 rows on 1 side of flattened and 3-angled rachises; spikelets 2-flowered, but the lower flowers sterile, 1 spikelet short-stalked, the other nearly unstalked; lower glumes translucent, more or less semi-circular, barely 0.3 mm long, upper glumes and sterile lemmas about equalling the fertile lemmas, 2-2.5 mm long, slightly hairy; lemmas dark brownish or dark purplish.
Source: The Illustrated Flora of British Columbia
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