Wistaria \Wis*ta"ri*a\, n. [NL.] [So named after Caspar Wistar, an American anatomist.] (Bot.) A genus of climbing leguminous plants bearing long, pendulous clusters of pale bluish flowers. Note: The species commonest in cultivation is the {Wistaria Sinensis} from Eastern Asia. {W. fruticosa} grows wild in the southern parts of the United States.