markweed

Thesaurus

Noun

1.markweed - climbing plant common in eastern and central United States with ternate leaves and greenish flowers followed by white berries; yields an irritating oil that causes a rash on contactpoison mercury, Rhus radicans, Toxicodendron radicans, poison oak, poison ivygenus Toxicodendron, Toxicodendron - in some classifications: comprising those members of the genus Rhus having foliage that is poisonous to the touch; of North America and northern South Americapoisonous plant - a plant that when touched or ingested in sufficient quantity can be harmful or fatal to an organism