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General:
Perennial, somewhat tufted herb from elongate fibrous roots; stems 20-60 cm tall, sharply triangular and rough below the inflorescence, about as long as the leaves.
Leaves:
Sheaths tight; blades numerous, borne on the lower part of the stem, 2-3 mm wide, flat.
Flowers:
Spikes 5 to 10 in a dense head 1.5-3.5 cm long (with 1 to 3 spikes separated below the head), egg-shaped, many-flowered, about 5 mm long, ascending, with both female and male flowers, the female flowers towards the tips, the male flowers inconspicuous; bracts reduced, only the lowermost bract sometimes awnlike, about 0.5-2 cm long.
Fruits:
Perigynia elliptical, 2.2-2.5 mm long, 0.8-1.5 mm wide, light brown, minutely whitish-dotted, plano-convex, smooth, several-nerved, especially above, unstalked, the beaks short, 0.25 mm long, smooth, not cleft; female scales egg-shaped, almost covering the perigynia, pointed, green, with green midribs; stigmas 2; achenes lens-shaped, 1.2-1.7 mm long, filling the perigynia.
Source: The Illustrated Flora of British Columbia
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