Poison oak and poison ivy : Rhus diversiloba T. & G. and Rhus radicans L.

Declared out of print May 2010. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalogPoison oak is common in western Oregon and Washington.\ud Its near relative, poison ivy,\ud is found in eastern Oregon and\ud Washington, throughout Idaho,\ud and eastward. Both plants are\ud native to the Pacific Northwest