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| | POISON IVY, POISON OAK, AND POISON SUMAC, (Site not responding. Last check: 2007-11-05) |
 | | POISON IVY, POISON OAK, AND POISON SUMAC, common names applied to three plants of the genus Toxicodendron, of the family Anacardiaceae (see CASHEW), capable of producing an allergic reaction in persons who have become sensitized to them. |
 | | Poison ivy and poison oak are variants of T. radicans (sometimes treated as separate species by botanists), different mainly in the shape of their leaflets. |
 | | Poison sumac, T. vernix, is a tall, smooth-stemmed shrub of swamps throughout the eastern U.S. and Canada. |
| equineestates.com /library/plants/p005pp.htm (465 words) |
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