Distribution: Native only to the Willamette Valley area (Multnomah and Washington to Benton and Linn counties). Introduced as a garden plant in western Washington, but rarely persisting.
Habitat: Dry fields and roadsides.
Conservation Status: Review Group 1 in Washington (WANHP)
Herbaceous perennial from a thick taproot and short rhizome, the stems 0.5-2 m. tall, usually with short, stiff hairs
Leaves alternate, palmately deeply 7- to 9-lobed, 5-15 cm. broad, the lobes again lobed and toothed.
Inflorescence an open, elongate raceme, the pedicels 3-6 mm. long; calyx 5-lobed, stellate or stellate and bristly; petals 5, nearly white to pinkish-orchid, 12-25 mm. long, clawed, with marginal hairs on the claws, shallowly notched; stamens 40-70, freed from the staminal tube in 2-3 series, the stamens united in groups; ovary superior, the carpels 5-10 in a ring around a central axis; styles equal to the number of carpels, elongate, stigmatic full length.
Capsule 3.5 mm. long.