When approaching a brushy area,” he says, “it’s important to know that poison ivy can be there. One of the first things to ...

Just the mention of the words “poison ivy” may have some of you itching already. The Johnson County Extension gardening hotline receives numerous requests for identification and control each summer.

A few years ago I was leading a group of Merrimack College ecology students on a nature walk, when one of them pointed to a vine with five leaflets per leaf, and asked if it was poison ivy. “No,” I ...

Add Yahoo as a preferred source to see more of our stories on Google. Poison ivy always has three leaflets attached to the stem alternately. Spring officially arrived on March 20, but for many ...

Add Yahoo as a preferred source to see more of our stories on Google. Michigan's summer climate provides ideal growing conditions for many flowers and other plants we enjoy — and for a few poisonous, ...

More than likely, we've all had a scare once or twice involving poison ivy. If you are an outdoor enthusiast, being educated about poison ivy and how to deal with its effects is important. Learn how ...

As important as poison ivy is for wildlife, it’s important for people to be able to identify the plant, even for those who ...

Poison ivy, poison oak and poison sumac can make for an uncomfortable summer or fall. If you have ever experienced the blisters, swelling and intense itching of even the briefest of encounters, then ...

If you're allergic to Toxicodendron radicans, more commonly known as poison ivy, you might view wintertime as a welcome reprieve from this plant's itchy rash. Unfortunately, that's not quite the case.

Mason Heberling, associate curator of botany at the Carnegie Museum of Natural History, holds a poison ivy specimen collected in Lehigh County, Pa. in 1840, the oldest used in the study. A new study ...