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- ›Dicots
- ›Soapberries, Cashews, Mahoganies, and Allies
- ›Cashew Family
- ›cashews, sumacs, and allies
- ›Toxicodendron
western poison ivy
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.
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Toxicodendron rydbergii in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 58729.