Poison ivy, oak and sumac all can create itchy rashes from urushiol. What you need to know before the rash starts.

Each poison ivy leaf has three leaflets ... Cases of poison plant allergy occur most frequently during the spring, summer, and early fall when people spend more time outdoors.

Poison oak, much like poison ivy, also has three leaves. The difference between the two is that poison oak has fuzzy green leaves. The leaves on poison oak have deeply toothed, rounded edges. They may ...

Spending time outside in the summer is one of the best ways to unwind — whether you’re hiking, gardening, or just hanging out ...

Poison ivy leaves turn reddish in the spring, green in the summer and yellow, orange or red in the fall. It grows in the Eastern U.S. as a shrub or a vine, which is hairy and ropelike. In the ...

Outdoor columnist Ben Smith reminds us to be on the lookout for poison ivy as we enter summer.

The most commonly known poisonous plants are poison ivy, poison sumac and poison oak. English ivy is often overlooked and is used in landscaping as ground cover, but it can be just as dangerous for ...

Oleanders tend to drop leaves in spring/early summer. So, what you are seeing is normal loss of the older leaves. There is no ...

Poison ivy is most easily identified by its three-leaf bundles. The plant's leaves start out shiny in the spring and become a dull green during the summer. Often poison ivy will change color in ...

Like poison ivy, its leaves have a alternate leaf pattern, and can grow as a shrub, bush or vine. In the spring, poison oak's leaves appear shiny with reddish or green colors that can curl inward.