Toxicodendron radicans, the ivy-like species of Toxicodendron, common in the eastern United States, known for its ability to cause an itching rash and blistering for most people, through urushiol.

Toxicodendron rydbergii, an ivy-like species of Toxicodendron common in the western United States, well-known for its ability to causes an itching rash and blistering for most people, through urushiol, an oil that is a skin irritant.

plural of little Ivy

plural of public Ivy

plural of poison ivy

plural of ground ivy

plural of lower Ivy

plural of ground-ivy

plural of Boston ivy

plural of common ivy