toxicodendron rydbergii

Toxicodendron rydbergii the western poison ivy, is a species of Toxicodendron in the cashew family. It is native to most of Canada from the Maritimes to British Columbia, and most of the contiguous United States except the southeastern states, New Jersey, Delaware, and California. It can be found growing in forests, and other wooded areas, usually near streams and rivers.

Unlike Toxicodendron radicans (eastern poison ivy), which often appears as a trailing or climbing vine, Toxicodendron rydbergii ...