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Definition of Western poison oak
1. Noun. Poisonous shrub of the Pacific coast of North America that causes a rash on contact.
Exact synonyms: Rhus Diversiloba, Toxicodendron Diversilobum
Group relationships: Genus Toxicodendron, Toxicodendron
Generic synonyms: Poisonous Plant
Group relationships: Genus Toxicodendron, Toxicodendron
Generic synonyms: Poisonous Plant