Poison Ivy 4 Ash. A poison ivy rash results from an allergic reaction to urushiol, an oily resin found in certain plants. The area will severely swell, itch, and turn red.
Toxicodendron radicans, commonly known as eastern poison ivy or poison ivy, is an allergenic Asian and Eastern North American flowering plant in the genus Toxicodendron. This oil causes the allergic skin reaction. Poison ivy, along with poison oak and sumac, is a non-flowering plant that can cause Contact with poison ivy usually results in a reaction, typically an itchy, red rash with.
The area will severely swell, itch, and turn red.
Poison ivy has oil called urushiol.
Poison ivy, along with poison oak and sumac, is a non-flowering plant that can cause Contact with poison ivy usually results in a reaction, typically an itchy, red rash with. The symptoms of a poison ivy rash depend on the amount of exposure to the plant and the urushiol oil. Toxicodendron radicans, commonly known as eastern poison ivy or poison ivy, is an allergenic Asian and Eastern North American flowering plant in the genus Toxicodendron.