Poison-ivy
noun
1.
a vine or shrub, Rhus radicans, having trifoliate leaves and whitish berries and causing severe dermatitis when touched by persons sensitive to it.
2.
.
3.
the rash caused by touching poison ivy.
noun
1.
any of several North American anacardiaceous shrubs or vines of the genus Rhus (or Toxicodendron), esp R. radicans, which has small green flowers and whitish berries that cause an itching rash on contact See also sumach (sense 1)
poison ivy n.
A North American shrub or vine that has compound leaves with three leaflets, small green flowers, and whitish berries and that causes a rash on contact. Also called poison oak.
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