poison sumac


noun

a shrub or small tree, Rhus vernix (or Toxicodendron vernix), of swampy areas of the eastern U.S., having pinnate leaves and causing severe dermatitis when touched by persons sensitive to it.
Also called poison dogwood.

Origin of poison sumac

First recorded in 1810–20

Medical definitions for poison sumac

poison sumac

n.

A swamp shrub of the southeast United States, having compound leaves and greenish-white berries and causing an itching rash on contact with the skin.