western poison oak | sense examples, Usage and Definition from wordnet dictionary online

Noun western poison oak has 1 sense

western poison oak, Toxicodendron diversilobum, Rhus diversiloba - poisonous shrub of the Pacific coast of North America that causes a rash on contact
--₁ is a kind of poisonous plant
--₁ is a member of Toxicodendron, genus Toxicodendron