Distribution: Known from Klickitat County in Washington; southcentral Washington to Wasco County, Oregon.
Habitat: Sagebrush slopes.
Growth Duration: Perennial
Conservation Status: Endangered in Washington (WANHP)
Perennial from a large cluster of fleshy roots, the several stems mostly erect, 5-20 cm. long, nearly glabrous, simple or branched above.
Leaves mostly basal; all leaves tri-ternately dissected into linear segments
Flowers 1-several on pedicels up to 10 cm. long; sepals 5, spreading, purplish-tinged, 5-8 mm. long, glabrous to stiff-hairy; petals 5, yellow, 8-15 mm. long; nectary scale wedge-shaped, 1.5-2 mm. long, forming a deep pocket; receptacle globose; stamens 40-80; pistils 30-150.
Achenes 1.5-2 mm. long, obovate, smooth; stylar beak straight, 0.5-0.8 mm. long.