— Short, snippet-friendly answers to the most-asked questions about Western Poison Oak (Rhus diversiloba). For the full profile with citations, open the main page.
Western Poison Oak (Rhus diversiloba) is a vine and shrub native to the Pacific Northwest and California, ranging from British Columbia to Mexico. Western Poison Oak (Latin: Rhus diversiloba) is an edible plant catalogued in PlantSage.
Western Poison Oak is generally regarded as safe for culinary use when correctly identified and prepared. Avoid wild specimens from polluted ground and confirm species before harvest.
Western Poison Oak is a member native to BRC, CAL, MXE, MXN, MXS, and NEV. Western Poison Oak thrives in full sun and prefers moist soil that is light (sandy), medium, or heavy (clay).
Western Poison Oak grows best in USDA zone 4-8, full sun light, and moist water. Detailed sowing, propagation, and care notes are on the full profile.
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