Distribution: British Columbia and Okanogan County, Washington, east to Alberta, south in the Rocky Mountains to New Mexico.
Habitat: Stream banks, lake shores, bogs and wet meadows, at high elevations.
Flowers: Late June - July
Conservation Status: Sensitive in Washington (WANHP)
Pubescent, herbaceous perennial from scaly rhizomes, the flowering stems 4-6 dm. tall.
Leaves mostly basal, several, lyrate-pinnatifid, up to 3 dm. long, the leaflets once or twice serrate, the three terminal leaflets much larger than the others; cauline leaves 3-5, reduced, pinnatifid below to deeply 3-lobed above.
Inflorescence open, 3- to 7-flowered, nodding in bud; calyx broadly cup-shaped, reddish-purple, the 5 lobes lanceolate and pointed, erect, 10 mm. long, alternating with 5 small, simple bracteoles; petals 5, yellow to pinkish, 2-3 mm. shorter than the sepals; stamens about 100; pistils numerous, the styles strongly bent and jointed.
Achenes elliptic, 3-4 mm. long, stiff-hairy, the lower joint of the style 6-8 mm. long, hooked at the tip, the upper joint 3-4 mm. long, deciduous.