Distribution: Widely distributed throughout Washington; British Columbia to California, east to the Rocky Mountains, also in central and southeastern U.S.
Habitat: Moist, open woods and stream banks, low to mid-elevations in the mountains.
Growth Duration: Perennial
Conservation Status: Not of concern
Perennial herb from widely-spreading rhizomes, the 1-several stems erect, 5-8 dm. tall, glabrous below but becoming crisp-puberulent in the inflorescence.
Leaves mostly basal, long-petiolate, palmately deeply lobed into 5-11 wedge-shaped, variously lobed and toothed segments, glabrous above and pubescent and paler beneath; cauline leaves 1-2, alternate, short-petiolate.
Inflorescence terminal on the stems, branched and flat-topped; sepals 4, 3-5 mm. long, ovate, concave; petals none; stamens numerous, whitish, 5-9 mm. long; pistils several.
Achenes 3-4 mm. long, papery, strongly nerved, the stylar beak hooked.