Japan Flora: stouter; climbing or trailing, sparsely pubescent annual or biennial to more than 1 m. high; leaflets 12-14, obovate to oblong, 10-20 mm. long, truncate to retuse and mucronate at apex; flowers usually 2 cm. or more long; calyx-teeth nearly equal; legumes 5-8 cm. long. 

Cultivated for green manure. w. Asia and Europe and widely culti­vated elsewhere.