It occurs mainly in western North America , from the Pacific coast to the Sierra Nevada and the Cascade Mountains between southern British Columbia and south to Baja California . It is very common in this region and is the dominant species of the genus. It is also one of California's most common tree shrubs.
This plant is very variable and grows as a dense shrub in sunny places or as a climbing liana in the shade. Propagated by creeping rhizomes or seeds. Composite leaves are divided into three leaves, 35-100 mm long, with pointed, jagged or even edges. California residents learn to recognize this plant by the saying " leaves of three, let it be ). Depending on the time of year, leaves can take on different shades of red, yellow, or green.