Distribution: Occurring east of the Cascades crest in the northeastern counties in Washington; Eastern British Columbia to northeast Washington, east to the Atlantic coast.

Habitat: Moist, low ground, less often on moist, wooded slopes.

Flowers: May-June

Origin: Native

Growth Duration: Perennial

Conservation Status: Not of concern

Pollination: Bees, flies, moths

Perennial with a cluster of fibrous roots from a short crown, the stem solitary, erect, branched only above, 4-12 dm. tall.

Basal and lower cauline leaves long-petiolate, the blade 6-15 cm. wide, palmately 5- to 7-parted or palmately compound, the segments or leaflets toothed or lobed; cauline leaves several, gradually reduced upward, becoming sessile.

Umbels head-like, subtended by leaf bracts, 1 cm. wide or less, greenish-white, 15- to 25-flowered, the majority staminate; calyx lobes 5, firm, triangular, tapered; styles 2, elongate, persistent.

Fruits ovoid, 4-6 mm. long and 3-5 mm. wide, covered with numerous hooked prickles.