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Definition of Markweed
1. Noun. 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.
Exact synonyms: Poison Ivy, Poison Mercury, Poison Oak, Rhus Radicans, Toxicodendron Radicans
Group relationships: Genus Toxicodendron, Toxicodendron
Generic synonyms: Poisonous Plant
Group relationships: Genus Toxicodendron, Toxicodendron
Generic synonyms: Poisonous Plant