Note: Information is dated. Do not rely on it.Wistaria. A genus of leguminous plants having pinnate leaves and flowers, in terminal recemes, the pod leathery. Some species are among the most magnificent ornamental climbers. Wistaria frutescens,, a native of Virginia, Illinois, and other parts of North America of similar climate, found chiefly in marshy grounds, attains the length of thirty feet, and has beautiful recemes of fragrant bluish-purple flowers. The Chinese wistaria is a cultivated species with showy blue flowers, much used as a climber over arbors and the walls of houses. It is taller than Wistaria frutescens.