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Learn how to identify, avoid, and treat poison ivy, a common plant allergen in the US. Find out the symptoms, first aid, prevention, and myths of poison ivy rash.
Learn how to identify, avoid and treat poison ivy, a woody vine or shrub with compound leaves and irritating oil. Find out how to control poison ivy in your landscape with herbicides or cutting methods.
May 15, 2024 · Poison ivy rash is caused by an allergic reaction to an oily resin called urushiol (u-ROO-she-ol). This oil is in the leaves, stems and roots of poison ivy, poison oak and poison sumac. Wash your skin right away if you come into contact with this oil, unless you know you're not sensitive to it.
Poison ivy is a common poisonous plant that causes an itchy skin rash. Other rash-inducing poisonous plants include poison oak and poison sumac. These plants produce an oily sap that contains urushiol (pronounced yer-OO-shee-all), which causes an irritating, itchy allergic reaction.
Learn what poison ivy looks like, how to avoid it, and how to treat it if you come into contact with it. This fact sheet also explains why poison ivy is illegal to grow in NYC and how to report it.
Learn how to identify, prevent and treat poison ivy, a plant that causes skin irritation or dermatitis. Find out about the poisonous oil, the symptoms, the treatment and the plant management tips.
Learn about the plant family, evolution, and ecology of poison ivy, the three-leaved miscreant that causes itchy rashes. Find out how to avoid contact, identify different forms, and distinguish it from poison oak and sumac.
