A large, deciduous, erect and spreading shrub that can grow up to 15 feet tall and spread up to 15 feet wide. Unique shredding reddish brown bark lines the branches and white “snow-ball” like flower clusters bloom in late spring. Found at low to mid elevations throughout western North America from southern Alaska, east to Montana and south through the PNW to California. Prefers moist soils, often along streams, lakes, bogs and other moist sites. It’s dense matting root system make it useful for stream-bank stabilization. It provides forage and habitat for many birds and animals.
Plant Guide - https://plants.sc.egov.usda.gov/factsheet/pdf/fs_phca11.pdf