If you're heading on an outdoor adventure, you should familiarize yourself with identifying poison ivy. These are the three ...

Rising atmospheric carbon dioxide levels are causing poison ivy leaves to grow larger and produce more of the toxic oil. Produced by Jacqui Frank. Original reporting by Jessica Orwig. Follow BI ...

One of the closest confidant's Poison Ivy has ever known is being asked to betray her, and they might have enough reasons to do just that.

Poison sumac is considered more allergenic than poison ivy and poison oak, which are other well-known plants in the Toxicodendron genus of the sumac family. Poison sumac releases an oil known as ...

The poison ivy contains an oily resin or sap in all parts of the plant that can cause an allergic reaction in most people ...