Poison ivy, oak, and sumac contain an oil called urushiol that causes an allergic skin rash. These plants can be identified by their leaf structure, though some non-toxic plants look similar. To avoid ...

Toxic and poisonous plants grow in Michigan, including giant hogweed, poison ivy, poison oak, wild parsnip, poison sumac and poison hemlock. Contact with the plants can cause skin irritation, blisters ...

If you're heading outdoors this summer, it pays to know the difference between poison ivy, poison oak and other rash-producing plants that will leave you itching and scratching — or worse. Most ...