Carex scopulorum var. scopulorum |
Carex scopulorum var. prionophylla |
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mountain sedge |
firethread sedge, saw-leaf Rocky Mountain sedge, saw-leaf sedge |
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Culms | 11–40 cm, glabrous on angles. |
35–90 cm, scabrous on angles. |
Leaves | proximal sheaths brown, fronts with pale brown spots, veinless, with blades, glabrous; leaf blades 3–6 mm wide. |
proximal sheaths red-brown, fronts with (red) pale brown spots, prominently ladder-fibrillose, bladeless, glabrous, backs scabrous; leaf blades 3–6 mm wide. |
Perigynia | obovoid. |
ellipsoid to obovoid, apex acute. |
2n | = 74. |
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Carex scopulorum var. scopulorum |
Carex scopulorum var. prionophylla |
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Phenology | Fruiting Aug–Sep. | Fruiting Jul–Aug. |
Habitat | Wet subalpine and alpine meadows | Wet subalpine meadows |
Elevation | 3000–4500 m (9800–14800 ft) | 1000–1400 m (3300–4600 ft) |
Distribution |
CO; WY |
ID; MT; WA; BC |
Discussion | A common sedge of the southern Rocky Mountains, Carex scopulorum var. scopulorum is distinguished from var. bracteosa by the glabrous stems and sheaths, and by the broader more obovoid perigynia. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 23, p. 399. | FNA vol. 23, p. 400. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | C. chimaphila, C. scopulorum var. subconcoloroides, C. tolmiei var. subsessilis | C. prionophylla, C. miserabilis |
Name authority | unknown | (Holm) L. A. Standley: Syst. Bot. Monogr. 7: 86. (1985) |
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