Poison ivy is a common name for "Toxicodendron radicans", a poisonous plant species. The larvae feed on "Rhus toxicodendron", "Rhus toxicodendron", "Toxicodendron pubescens" and "Toxicodendron radicans". Some species formerly recognized in "Rhus", such as poison ivy ("Toxicodendron radicans", syn. Alabama supplejack ("Berchemia scandens"), and eastern poison-ivy ("Toxicodendron radicans"). "Toxicodendron radicans", which again support "Succinea" sp.