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 ...

Summer is in full bloom and so are plants and weeds that can cause you harm. Outdoor enthusiasts, gardeners and just about everyone else should know about poison ivy, poison oak, poison sumac and ...

You’ve probably heard the phrase “Leaves of three, let it be.” But do you know other ways to protect yourself from poison ivy and similar plants? Keystone Infectious Disease’s Medical Director, Dr.

Poison oak is a leafy shrub that grows in shady areas of your yard where it can reach six feet in height. The leaves and stems of the western poison oak plant (Toxicodendron) can release an oil called ...

Poison ivy has three leaves, and the middle leaf has a longer stem. Touching poison ivy causes an allergic reaction due to urushiol oil. Poison oak and poison sumac are related to poison ivy and also ...