Distribution: Occurring east of the Cascades crest in northeastern Washington; Yukon Territory to northeastern Washington, east to and south in Rocky Mountains, east to eastern North America.
Habitat: Moist, shaded soil.
Growth Duration: Perennial
Conservation Status: Not of concern
Perennial from widely spreading rhizomes, the short, woody stems barely reaching the soil surface.
Leaves single, 3-5 dm. long, from a basal scale 1-2 cm. long at the top of the stem; petiole about equal to the ternate blade, which is again pinnate, the ultimate segments usually 5, ovate-oblong, serrate, 5-12 cm. long.
Inflorescence shorter than and arising with the leaves, consisting of 3-7 globose, paniculate umbels; pedicels slender, 5-10 mm. long; flowers perfect, 5-6 mm. long; sepals minute, on the inferior ovary; petals 5, greenish-white, 2.5 mm. long; stamens and pistils 5, distinct.
Berries dark purple, 6-8 mm. long.