Poison ivy causes allergic reactions in most people—and pets—due to an oily compound called urushiol found in the plant’s leaves, stems and roots. This same chemical is also present in ...

Just thinking about poison ivy can make you itch. Blistering rashes on your arms and ankles, oozing bumps between your fingers and eyelid-swelling exposures are all-too-familiar summer hazards.

Photo of poison ivy. Poison ivy belongs to the Anacardiaceae family, and there are about 30 species that grow in the Americas, but mostly Asia, according to the American Museum of Natural History.

If you've never received a rash from poison oak, ivy or sumac, the rash could last 21 days or longer. If you have had the rash previously, it will last one to 14 days.

Dear Neil: We have several acres covered with poison ivy. Unfortunately, the ivy keeps spreading. Store-bought remedies as well as home-made mixtures have not worked. Do you have any suggestions?

Eastern poison ivy grows as either a plant on the ground or as a vine with aerial roots to secure itself around trees or other objects. Greenish flowers appear with five petals about 3 millimeters ...

You may have managed to dodge the dreaded rashes often associated with poison ivy, poison oak or poison sumac, but that doesn’t necessarily mean you’re not allergic. While it’s true that a ...

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 ...