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 ...

Learn how to identify poison ivy, oak, and sumac plants and the rashes they cause. Although poison ivy isn't the only plant with leaves that grow in clusters of three, the adage "leaves of three, ...

Many plants and weeds can cause rashes. People with sensitive skin may experience skin irritation when touching plant matter without protective equipment, like gloves. Some plants are more likely to ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (NEXSTAR) – You may have managed to dodge ...