Toxicodendron diversilobum (Torr. & A. Gray) Greene
Poison oak, Poisonoak, Western Poison Oak
2020 Ron Vanderhoff 2019 Randy Huey 2025 Mike Russler 2018 Brad Christie 2021 Michelle Karle 2022 Austin Parnow 2020 Kim Cabrera 2019 Patrick Furtado 2019 Patrick Furtado 2021 Cynthia Powell 2022 Cynthia Powell 2022 R.A. Chasey 2025 Mike Russler 2025 Mike Russler 2025 Mike Russler 2020 Ron Vanderhoff 2021 Bryant Baker 2022 Steven M Norris 2022 Steven M Norris 2022 John Doyen 2025 R.A. Chasey 2025 R.A. Chasey 2025 Mike Russler 2022 R.A. Chasey
Toxicodendron diversilobum is a vine or shrub that is native to California, and also found elsewhere in western North America.
Toxicity: Severe skin irritation from touching any part of this plant.
Wetlands: Arid West: Occurs usually in non wetlands, occasionally in wetlands Mountains, Valleys and Coast: Equally likely to occur in wetlands and non wetlands
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Suggested Citation
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2025.The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 07/17/2025).
