A deciduous spreading shrub that can reach 18 feet in height. It has thin long leaves, and clusters of small creamy white flowers that bloom in the spring. The berries grow in clusters and become red when ripening in the summer. Grows quickly and does well in poor moist soils; best in cool shaded areas, although it will tolerate mostly sunny sites. The extensive root system holds soil to prevent erosion. Palatable to small and large wildlife and livestock; however, uncooked berries are poisonous to humans. Found throughout the western United States.