A tropical woody vine (Abrus precatorius) widely naturalized in Florida, having scarlet and black poisonous seeds used as beads. Also called crab's eye, Indian licorice. or Indian licorice Tropical plant (Abrus precatorius; family Leguminosae). Its hard, red and black seeds, though highly poisonous, are strung into necklaces and rosaries in India and other tropical areas. In India the seeds are also used as a unit of weight (ratti)