Eastern Poison Ivy

Toxicodendron radicans is an allergenic plant that grows as a vine or shrub. It is not a true ivy but is part of the Anacardiaceae family, which includes the cashew and sumac. The plant is widely distributed and has multiple subtaxa. It is known for causing allergic reactions and is often confused with similar species. The name was first described by Linnaeus and later reclassified by Kuntze.