poison ivy

Toxicodendron radicans

Summary 2

Toxicodendron radicans, commonly known as poison ivy (older synonyms are Rhus toxicodendron and Rhus radicans), is a poisonous North American and Asian plant that is well known for its production of urushiol, a clear liquid compound found within the sap of the plant that causes an itching, irritation and sometimes painful rash in most people who touch it. The plant is not a true ivy (Hedera).

Sources and Credits

  1. (c) Lori Anne, some rights reserved (CC BY-NC), http://www.inaturalist.org/photos/4251139
  2. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Toxicodendron_radicans

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