General: Perennial, tufted herb from slender, creeping, branched rhizomes; stems (10) 20-50 cm tall, clustered, usually longer than the leaves, reddish-brown tinged at the bases.
Leaves: Sheaths tight, breaking into threads at the bases; blades flat, channeled towards the base, 5 to 10 per stem, the margins somewhat turned in, borne on the lower 1/3 of the stem, 1-3 mm wide, the lower ones slightly reduced.
Flowers: Spikes 2 to 4, the terminal one 1-2.5 cm long, the stalks 0.8-10 mm long, with many male flowers, the lower spikes 1 to 3, with female flowers, unstalked to short-stalked, erect; bracts subtending the lowest spike leaflike, sheathless or short-sheathing, shorter than the inflorescence, the others short, inconspicuous.
Fruits: Perigynia broadly egg-shaped to nearly globe-shaped, 2.5-4.5 mm long, 2-2.3 mm wide, dull green to straw-coloured, convex, finely short-hairy, with 2 prominent marginal nerves, the bases short-stalked, the beaks 0.5-1.5 mm long, bidentate; female scales egg-shaped, rounded to tapered, slightly longer to somewhat shorter than the perigynia, straw-coloured to brownish, with lighter midribs, with translucent margins; stigmas 3; achenes 3-angled, with convex sides above, smooth, 1.8-2.5 mm long.
Notes: Two subspecies occur in BC :
1. Lower female spike elongate, short-stalked, its bract often short-sheathing; stalks of the male spike 4-10 mm long.................... ssp. inops
1. Lower female spike short, unstalked, its bract sheathless; stalks of the male spike 0.8-5 mm long.................... ssp. heliophila (Mack.) Crins
Mesic to dry oak woodlands, meadows and rock outcrops in the lowland, montane and steppe zones; ssp. inops - infrequent in SW and SC BC; ssp. heliophila - infrequent in NE BC; ssp. inops - S to CA; ssp. heliophila - E to ON and S to IN, MO, OK, NM and UT.
A shade-intolerant, submontane to montane, Pacific North American sedge. Occurs in maritime to submaritime summer-dry cool mesothermal climates on moderately dry to fresh, nitrogen-medium soils. Sporadic on water-shedding, often disturbed, sites. Characteristic of grassy communities and opencanopy, young-seral, Douglas-fir forests.
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:
2020-02-17 4:39:34 AM
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