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 ...

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.

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 ...

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.

CHARLOTTESVILLE, Va. (WHSV) - With the warm spring weather, plants are growing, including the poisonous variety such as poison ivy, poison oak and poison sumac. These plants have a substance called ...

Every gardener should know how to get rid of poison ivy when it pops up around the yard. If the sap from this plant comes in contact with your skin, a chemical called urushiol in the sap can cause ...

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 ...

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 ...

If you were a Girl Scout or a Boy Scout, you probably heard the adage "leaves of three, let them be" to deter you from getting poison ivy rash. And, while it is true that a poison ivy leaf contains ...

TENNESSEE, USA — Leaves of three, let it be! That phrase is an old adage, but it has helped people identify plants they should stay away from during the summer. Plants like poison ivy usually grow ...