Aralia californica

About

Aralia californica, known by the common name elk clover, California aralia and California spikenard is a large deciduous perennial herb native to California and Oregon in the family Araliaceae. It occurs primarily in moist, shaded habitats such as streambanks, canyons and mixed forests. The plant can reach 2-3 m in height and produces very large compound leaves. It has small, greenish-white flowers that occur in branched clusters, followed by dark purple to black fruits.

Summary from Wikipedia