It’s native range is primarily in the Eastern Cascades where it is found at low- to mid-elevations. Small, shrubby tree that grows to 20 feet tall with multiple stems that arise from the ground. Creates a spreading canopy that can grow 10 to 15 feet wide. Prefers moist sites and is most commonly found along streams or other bodies of water. Tolerates some shade but prefers moderate to full exposure. Very valuable as a riparian species, its roots are effective in streamside soil stabilization, providing shade and as shelter and food for many species of birds and mammals.
Plant Guide - https://plants.sc.egov.usda.gov/plantguide/pdf/pg_beoc2.pdf