Poison ivy grows as a vine or woody shrub in woodlands, forest edges, and along lakes and rivers. It is native throughout the U.S. and parts of Canada. As a vine, poison ivy grows by aerial ...

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 ...