toxicodendron diversilobum(n = noun.plant) rhus diversiloba, western poison oak - poisonous shrub of the Pacific coast of North America that causes a rash on contact;
is a kind of poisonous plant
is a member of genus toxicodendron, toxicodendron

genus toxicodendron, toxicodendron, toxicodendron quercifolium, toxicodendron radicans, toxicodendron vernicifluum, toxicodendron vernix