Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to the Rocky Mountains.
Habitat: Moist woods or somewhat moist places in shrub-steppe, sea level to mid-elevations in the mountains.
Conservation Status: Not of concern
Deciduous, straggly shrubs to erect, spreading trees 15 m. tall, the bark deep reddish-purple on the young twigs.
Leaves alternate, the blades elliptic to oblong or obovate, finely serrate, 3-8 cm. long, with petioles 5-12 mm. long.
Inflorescence a few-flowered, flat-topped raceme; calyx cup-shaped, the 5 oblong-lanceolate lobes 2.5-3.5 mm. long; petals 5, white, obovate, 5-7 mm. long, pubescent on the lower surface; stamens about 20; pistil 1.
Drupe dark red to nearly black, 8-12 mm. long, very bitter.