Identifying Poison Ivy, Oak, and Sumac The first step in dealing with these plants is proper identification. Each plant has distinct characteristics that can help you recognize and avoid them.

The University of Massachusetts Extension Weed Herbarium offers pictures of various parts of the poison ivy plant to help ...

If you have a red rash on your hands, arms, or legs that's accompanied by intense itching, you may have had a brush with poison ivy. Here’s what to do if you think you’ve been exposed to the ...