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Toxicodendron rydbergii
Also called Poison Ivy, Rydberg's Poison Ivy, Creeping Poison Ivy, Northern Poison Ivy
Western poison ivy is a native North American shrub, usually about 1 m tall, that grows in wooded areas near streams and rivers. Every part contains urushiol, so avoid all contact with it.
Toxicodendron rydbergii, the western poison ivy, is a species of Toxicodendron in the cashew family native to North America. As a poison ivy, it can cause urushiol-induced contact dermatitis.
Because it contains urushiol, contact with the plant can cause severe contact dermatitis in most individuals.
It is native to most of Canada from the Maritimes to British Columbia, and most of the contiguous United States except the Southeast, Nevada, Oregon and California. It is apparently extirpated from West Virginia. It can be found growing in forests, and other wooded areas, usually near streams and rivers.
Pacific poison oak · Asian Lacquer Tree · Atlantic poison oak · Poison ivy · Chinese Lacquer · Poison sumac · Poison oak
Text excerpted from the Wikipedia article Toxicodendron rydbergii by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
