Poison ivy identify In different states, there are different types of poison ivy and oak. And many places have none of these nasty plants. So we created some .If you've ever come home from a hike in the woods, or after working in your own yard, and found yourself covered with an itchy, red rash, you've probably encountered poison ivy, poison oak or poison sumac. Pets who wander through a patch of these poisonous plants won't get .Plant Perp Walk: How to ID Poison Ivy. But as it turns out, a lot of harmless plants - like aromatic sumac skunkbush , Virginia creeper and boxelder - are commonly mistaken for poison ivy. Thick, hairy vines are a hallmark of poison ivy plants.. - Identifying Poison Oak. Like poison ivy, this plant most often grows leaves in c.ers of three, although some varieties display five or seven per .