markweed

n.

1.

A climbing plant (Toxicodendron radicans) common in eastern and central U. S. with ternate leaves and greenish flowers followed by white berries. It yields an irritating oil that causes a rash on contact; commonly called poison ivy.

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 contact poison mercury, Rhus radicans, Toxicodendron radicans, poison oak, poison ivy genus 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 America poisonous plant - a plant that when touched or ingested in sufficient quantity can be harmful or fatal to an organism