Kobrésie fausse-queue-de-souris

Carex myosuroides Villars, Prosp. Hist. Pl. Dauphiné, 17. 1779; Kobresia bellardii (Allioni) Degland ex Loiseleur

Culms 5–20(–35) cm. Leaves: basal sheaths somewhat glossy, bladeless; blades filiform, 2–20 cm × 0.2–0.5 mm. Inflorescences simple, 10–30 × 2–3 mm; proximal spikelets 2-flowered and androgynous, rarely 1-flowered and pistillate; distal spikelets 1-flowered, staminate. Scales brown, ovate, 2–3.5 mm, margins hyaline, midvein distinct almost to tip, apex obtuse or cuspidate. Anthers 1–1.5 mm. Perigynia brown, 2–3.5 mm, margins free to base, smooth. Achenes 2–2.8 mm. 2n = 52, 56–58.

Fruiting summer. Tundra, grassland, heaths, bare rocky, dry to wet ground; 0–3500 m; Greenland; Alta., B.C., Man., Nfld. and Labr., N.W.T., Nunavut, Ont., Que., Yukon; Alaska, Calif., Colo., Idaho, N.Mex., Oreg., Utah, Wyo.; Eurasia.