Wisteria frutescens is a woody vine to 12 m long, young stems hairless.
Leaves alternate, pinnately compound, leaflets 9-14, elliptic to oblong, 2-5 cm, tip pointed, base wedge-shaped to rounded, slightly hairy below.
Flowers lilac-purple, 1.5-1.8 cm, in clusters 4-10 cm with densely hairy stems;
Fruit pod 5-10 cm, hairless (Rehder 1986).
Wetland status: FACW-.
Frequency in NYC: Very infrequent.
Origin: Virginia and south.
Habitat: Escaped from cultivation, soil pH 4-7 (USDA, NRCS 2010).