Japan Flora: Stems slender, woody, loosely prickly with slender, scarcely flattened, spreading prickles, glabrous to short- pubescent; leaves subcoriaceous, broadly ovate to ovate-orbicu­lar, 5-8 cm. long, 4-7 cm. wide, short-acuminate, cordate at base, glabrate on both sides or short-pubescent beneath, espe­cially on nerves, and on nerves above, 3- to 5-lobulate, the lat­eral lobules short or often obsolete, with short-awned teeth, the petioles 3-7 cm. long; inflorescence rather densely few-flow­ered, short-pubescent, the pedicels short; calyx pubescent, 7-8 mm. long, the tube short, the lobes nearly ovate, acuminate, sometimes 2- to 4-lobed, densely short-pubescent on margin; petals 4-5 mm. long, obovate; fruit red, the stones about 2 mm. long, obliquely rugose. Aug.-Oct. Woods in moun­tains.

Honshu (centr. distr. and westw.), Shikoku, Kyushu.  China (?).