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FNA | Family List | FNA Vol. 23 | Cyperaceae | Carex

198c. Carex scopulorum Holm var. prionophylla (Holm) L. A. Standley, Syst. Bot. Monogr. 7: 86. 1985.

Carex prionophylla Holm, Amer. J. Sci. 164: 423. 1902; C. miserabilis Mackenzie

Culms 35–90 cm, scabrous on angles. Leaves: proximal sheaths red-brown, fronts with (red) pale brown spots, prominently ladder-fibrillose, bladeless, glabrous, backs scabrous; leaf blades 3–6 mm wide. Perigynia ellipsoid to obovoid, apex acute. 2n = 74.

Fruiting Jul–Aug. Wet subalpine meadows; 1000–1400 m; B.C.; Idaho, Mont., Wash.

Carex scopulorum var. prionophylla usually occurs at somewhat lower elevations than var. bracteosa. Where the two are sympatric, they can be distinguished by the bladeless, ladder-fibrillose basal sheaths and the narrower ellipsoid perigynia of var. prionophylla.


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