Poison Ivy (Toxicodendron radicans) Poison Ivy: A Misunderstood Native Plant with Hidden Benefits Toxicodendron radicans is often much hated by humans, known for causing rashes and swelling. However, it offers surprising ecological benefits. This native species plays a vital role in New York’s ecosystems, benefiting both wildlife and the soil. For many songbirds, Poison Ivy’s […]