General: Perennial, loosely tufted herb from short, branching rhizomes, the roots soft-hairy; stems 10-70 cm tall, as long as or longer than the leaves, reddish-tinged at the bases.
Leaves: Sheaths tight; blades 2 to 5 per stem, flat with slightly rolled-under margins, borne on lower 1/2 of stem, 2-5 mm wide, lower ones much reduced.
Flowers: Spikes 3 to 5, the terminal one linear, 15-25 mm long, with male flowers, the lower spikes 2 to 4, with female flowers, cylindrical, 1-3 cm long, 6-8 mm wide, separate, long-stalked, ascending, the lower one nodding; bracts subtending the lowest spike leaflike, sheathless or short-sheathing, shorter or longer than the inflorescence, the others reduced.
Fruits: Perigynia narrowly egg-shaped, 3.3-5.5 mm long, 1-2.5 mm wide, usually light green, 10- to 15-nerved, short-stalked, beakless to short-beaked, 0.1-0.2 mm long; female scales egg-shaped, rounded, long-awned, the awns 3-5 mm long, as wide as and shorter or sometimes longer than the perigynia, black to dark brown, with lighter, green centres and translucent margins; stigmas 3; achenes 3-angled, stalked, smooth, 1.7-2.3 mm long.
Moist to wet meadows, heaths, streambanks, and beaches in the lowland to subalpine zones; common in and W of Coast-Cascade Mountains, frequent E of Coast-Cascade Mountains; amphiberingian, N to AK and S to OR; NE Asia, Japan.
Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2020. 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:
2021-07-26 4:46:31 PM
The information contained in the E-Flora atlas pages is derived from expert
sources as cited in each section. This information is scientifically based.
E-Flora also acts as a portal to other sites via deep links. As
always, users should refer to the original sources for complete information.
E-Flora BC is not responsible for the accuracy or completeness of the