Poison Sumac Overview:

Poison sumac, scientifically called "Toxicodendron Vernix" but commonly called "swamp sumac" is primarily found along the eastern coast and near gulf of Mexico in the United States below 4,000 feet elevation. It grows as a free standing shrub or tree in swamps, flat lowlands, and moist slopes. It usually grows from 6 to 20 feet tall. This fragile plant secretes an oily sap called urushiol that causes an uncomfortable allergic reaction in humans who have come into contact with it. Between poison oak, ivy and sumac, poison sumac yields the most uncomfortable rash. It also has the highest likelihood of making a human physically ill, beyond the normal itching.


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