How can you tell if you're dealing with poison oak or poison ivy ... are located may affect where you'll find poison ivy ...

poison sumac is only found in the eastern parts of the United States and a few regions in Canada. Poison ivy and poison oak ...

Toxicodendron diversilobum (western poison oak) and Toxicodendron toxicarium (eastern poison oak). There are also two species of poison ivy, Toxicodendron rydbergii, a nonclimbing subshrub ...

There are two types of poison ivy in the United States, both of which have clusters of three leaves (hence the saying, “Leaves of three, let it be”). Eastern poison ivy is a hairy, ropelike ...