What is the only part of a poison ivy plant that is not poisonous?
the pollen Poison ivy (Toxicodendron radicans syn. Rhus toxicodendron, Rhus radicans) is a plant in the family Anacardiaceae. It is a woody vine (not ivy) and is well known for its ability to produce urushiol, a skin irritant that causes an itching rash for most people, technically known as urushiol-induced contact dermatitis. Around 15- 30% of people have no allergic response, but most people will become sensitized with repeated or more concentrated exposure to urushiol. Urushiol binds to the skin on contact, where it causes severe itching that develops into reddish colored inflammation or non-colored bumps, and then blistering. These lesions may be treated with calamine lotion, Burow solution compresses, or Aveeno baths to relieve discomfort. In severe cases, clear fluids ooze from open blistered sores and corticosteroids are the necessary treatment. The oozing fluids released by itching blisters do not spread the poison. The appearance of a spreading rash indicates that some areas r
