Douglasia montana
Rocky Mountain dwarf-primrose
prostrate to ascending with marcescent, imbricate, gray to light brown leaves.
spreading to erect, thin;
blade linear-subulate, 4–10 × 0.5 mm, margins entire, ciliolate, hairs simple, apex acute, surfaces glabrous.
5–20 mm, elongating little in fruit, densely hairy, hairs branched and stellate.
1–2-flowered, ebracteate or bracteate;
bracts 1–3, subulate, 2–3 × 0.5 mm, hairy, hairs simple or forked.
present, 0.5–10 mm.
calyx 4–8 × 3–5 mm, glabrous or slightly hairy, hairs branched and stellate;
corolla rose-pink, limb 6–10 mm diam., lobes 3–5 × 1–2 mm, margins erose or entire.
Douglasia montana
Specimens of Douglasia montana from Wyoming tend to have two flowers per inflorescence (once recognized as var. biflora); those from the northern part of the range tend to have only one. Because both one- and two-flowered inflorescences occur together on individual plants throughout the range, and no other morphological differences separate the forms, the varietal distinction is not recognized here.
In Alberta, Douglasia montana is known only from Waterton Lakes National Park near the Montana border.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
