Poison ivy contains an oil called urushiol, which causes a red, itchy rash when it transfers to the skin. Every part of the plant contains this oil, from the roots to the stem to the leaves ...

The most common causes of ACD are the plants of the Rhus genus, poison ivy (toxicodendron radican ... or urushiol (found in leaves, stems, and roots), of the plant embeds in the skin, producing ...

Call me a dope, but I had zero clue about the dangers of the "hairy rope" you may see on some New York State trees in the ...