Define Poison ivy rash. Poison ivy rash synonyms, Poison ivy rash pronunciation, Poison ivy rash translation, English dictionary definition of Poison ivy rash. Noun 1. Toxicodendron - in some classifications: comprising those members of the genus Rhus ha
poisonberry- Eurasian herb naturalized in America having white flowers and poisonous hairy foliage and bearing black berries that are sometimes poisonous but sometimes edible black nightshade,common nightshade,poison-berry,Solanum nigrum nightshade- any of numerous shrubs or herbs or vines of the genus ...
poison arrow plant- medium-sized shrubby tree of South Africa having thick leathery evergreen leaves and white or pink flowers and globose usually two-seeded purplish black fruits Acocanthera oblongifolia,Acocanthera spectabilis,winter sweet
poison oak- climbing plant common in eastern and central United States with ternate leaves and greenish flowers followed by white berries; yields an irritating oil that causes a rash on contact markweed,poison mercury,Rhus radicans,Toxicodendron radicans,poison ivy ...