Identification photos of leaves and berries.

Poison Ivy photos, photo quiz, FAQ, Stories, and a poster to purchase.

Questions about poison ivy, oak, and sumac poisoning, identification, home and commercial remedies.

Article by Isadora B. Stehlin tells about avoiding contact with poison ivy, oak, and sumac, as well as treating the rash.

Photographs provided for identification purposes including closeup photos of different parts of the plant.

To help avoid contact with it, this site provides photographs of poison ivy for identification, as well as pictures of similar plants for comparison.

Information from the Missouri Department of Conservation.

Basic information about poison ivy, oak, and sumac; product reviews.

Provides photographs of poison oak and a similar plant for comparison, and information on identifying it and dealing with the consequences of accidental contact.