Japan Flora: Stems slender, glabrous; leaflets tliinner, green, the nerves on upper side minutely puberulous, nearly glabrous beneath, with un­dulate, spreading, mucronate shallow teeth, the terminal leaf­lets larger, broadly lanceolate, 4-9 cm. long, 1.5-3.5 cm. wide, acuminate, obtuse to acute at base; inflorescence glabrous, peduncled; fruit globose, 7-12 cm. across, purplish red at first, becoming black at maturity; seeds 1-4, broadly obovate, about 7 mm. long, with a narrow transverse raised ridge on each side, the central part with a longitudinal impressed band broader than the sides.  June. Kyushu (s. distr.); rare.

Ryukyus and China.