Comments
provided by eFloras
Carex rupestris can be confused with C. obtusata if collected without the rhizomes. They may be distinguished by the presence of reddish dots on the sheath fronts of the culm leaves in C. obtusata and the absence of dots in C. rupestris.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
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Rhizomes brown or black, scaly. Culms 4–20 cm. Leaf blades channeled, tips soon becoming brown and dry, 2–12 cm × 1–3 mm. Spike with 3–15 pistillate flowers, 8–20 × 1.5–4 mm. Pistillate scales brown, margins hyaline, midvein paler, circular-ovate 2.5–4 × 1.4–2.6 mm, apex obtuse, often concealing perigynia. Staminate scales brown, margins hyaline, midvein paler, oblong-lanceolate to obovate, 2.5–3.5 × 1.4–2 mm, apex acute or obtuse. Perigynia 2.5–4 × 1–2 mm. Achenes oblong-obovoid, 2.2–2.5 × 1.5 mm. 2n = 52.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Distribution
provided by eFloras
Greenland; Alta., B.C., Man., Nfld. and Labr., N.W.T., Ont., Que., Yukon; Alaska, Colo., Mont., S.Dak., Utah, Wyo.; Eurasia.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Flowering/Fruiting
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Fruiting late spring–summer.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Habitat
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Dry to mesic heaths, meadows, rock outcrops, talus slopes; 0–2000m.
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
provided by eFloras
Carex drummondiana Dewey
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA