Poison ivy (Toxicodendron radicans) is a vine that contains an oily resin known as urushiol. According to the Centers for ...

When you’re spending time outdoors this summer, in your own yard or hiking in a park, it’s useful to know to spot poison ivy.

Poison ivy has leaves in groups of three, a green or reddish tint, and a hairy vine. A poison ivy rash looks like small, red bumps that can sometimes progress into blisters. To avoid poison ivy ...

Urushiol is an oil that stays on skin for around 30 minutes and on certain surfaces for up to 5 years ... oily substance in the leaves, stems, and roots of the poison ivy plant.

Poison ivy has three shiny green leaves, grows in clusters of three, and produces white fruit berries. Poison ivy remains ...