Sieversia grisea

Comprehensive Description

provided by North American Flora
Sieversia grisea (Greene) Rydberg
Erythrocoma grisea Greene, Leaflets 1: 173. 1906. Erythrocoma arizonica Greene, Leaflets 1: 179. 1906. Erythrocoma tridentata Greene, Leaflets 1 : 179. 1906. Erythrocoma aliena Greene, Leaflets 1: 179. 1906.
Perennial, with a thick rootstock; stem 2-3 dm. high, purple-tinged, pilose throughout; basal leaves interruptedly pinnate, 5-15 cm. long; principal leaflets cuneate or obovate-cuneate, 1-2 cm. long, pilose on both sides and ciliate on the margins, rather pale, yellowishgreen, usually 3-cleft to near the middle and again toothed, sometimes merely 3-5 -toothed at the apex; rachis hirsute; bractlets linear-subulate, about 1 cm. long, equaling or sometimes slightly exceeding the sepals; hypanthium hemispheric or slightly sunken at the base, tinged with scarlet or rose; calyx triangular-lanceolate or lance-ovate, attenuate-acuminate, about 1 cm. long; petals elliptic or oblong-spatulate, about equaling the bractlets; plumose part of the fruiting style about 3 cm. long; glabrous portion 3-4 mm. long.
Type locality: San Francisco Mountains, Arizona.
Distribution: Mountains, from Wyoming, Montana, Washington, and Oregon to New Mexico
bibliographic citation
Per Axel Rydberg. 1913. ROSACEAE (pars). North American flora. vol 22(5). New York Botanical Garden, New York, NY
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