Toxicodendron vernix is Poison sumac, an Obligate Wetland species. Poison sumac is an erect, woody shrub or small tree growing to 20 feet in height, occurring in wet areas of the coastal plain and piedmont. It differs from Poison ivy and Poison oak in having leaves bearing 7 to 13 leaflets which have entire margins. The central leaf stalk and small leaflet stalks are typically bright red colored. Poison sumac is a wetland species growing in coastal pocosins, bays and wet, acidic pine woods. Leaves of Poison sumac turn a glowing orange to red in the fall. Poison sumac is a severe contact poison causing extreme inflammation, swelling and itching in susceptible individuals.