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 ...

Poison ivy often grows in cities and suburbs, not just forests. It appears in every U.S. state except Alaska and Hawaii. If you are not sure whether a plant is poison ivy, stay away anyway to keep ...

While those shiny green leaves lining the base of a tree might look harmless, poison ivy isn't anything to mess around with, especially when the results of touching it are an itchy red rash that lasts ...

The dangers of touching or eating a poisonous plant range from mild irritation all the way to death. In the U.S. the hazardous plant you're most likely to come into contact with is poison ivy—or its ...

A poison ivy rash is caused by exposure to urushiol oil found in poison ivy, poison oak, and poison sumac plants. The rash itself is not contagious from person to person. The rash can appear to spread ...

If you’ve ever had a poison ivy rash, you know this plant is not your friend, and you definitely don’t want it lurking in your yard. But trying to eliminate it without taking the proper precautions ...

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 ...

You can identify poison ivy by its three glossy leaflets and color changes with the seasons. Wash your skin with soap and water right away if you touch poison ivy to stop the oil from spreading. You ...

Sure, it’s irritating. But this unpopular native plant also has underappreciated superpowers. Here’s how to deal with it. By Margaret Roach Pop quiz: What’s an ecologically important native flowering ...