General: Perennial, densely tufted herb from fibrous roots; stems 10-80 cm tall, longer than the leaves.
Leaves: Sheaths straw-coloured to greenish; blades 4 to 8 per stem, flat or channelled below, borne on the lower 1/2 of the stem, 2-5 mm wide, the lower ones reduced or lacking.
Flowers: Spikes 3 to 7, the terminal one unstalked or short-stalked, linear, 5-20 mm long, with male flowers (rarely some female flowers), the lower spikes 2 to 5, erect, cylindrical, 5-19 mm long, many-flowered, with female flowers (sometimes with male flowers at the tips), long-stalked, the stalks 5-20 mm long; bracts subtending the female spikes conspicuous, leaflike, 3-8 cm long, much exceeding the inflorescence, the sheaths 2-20 mm long, the upper bracts shorter.
Fruits: Perigynia spreading to reflexed, egg-shaped, 4.2-6.5 mm long, 1.2-2 mm wide, yellowish-green to green, smooth, prominently nerved, 2-ribbed, the beaks about as long as the bodies of the perigynia, bidentate, finely toothed on the margins, reddish-tinged at the tips; female scales egg-shaped, pointed, shortly awned at the tips, narrower and much shorter than the perigynia, reddish to brownish, with greenish midribs and translucent margins; stigmas 3; achenes 3-angled, smooth, 1.2-1.5 mm long.
Bogs, swamps, shorelines and wet, sandy sites in the lowland and montane zones; frequent in S BC, rare northward, absent on the Queen Charlotte Islands; disjunct circumpolar, N to AK and YT, E to NF and S to NH, NJ, PA, VA, OH, IN, WI, MN, CO, ID and WA; Iceland, Europe.
Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2019. E-Flora BC:
Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for
Advanced Spatial Analysis, Department of Geography, University of British
Columbia, Vancouver. [Accessed:
21/11/2019 6:56:27 PM
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