Japan Flora: Bark grayish brown, the branchlets grayish to yellowish brown, glabrous; leaves obovate, obovate-elliptic or sometimes elliptic, rounded to cuneate, sometimes shallowly cordate at base, 8-12 cm. long, 4-6 cm. wide, vivid green and sometimes scattered-pilose on upper side, pale green to bright green and lustrous and often with spreading hairs beneath, with short-awned coarser marginal teeth than in Nos. 13 and 14, the petioles slightly reddish, with a pair of small, sessile glands on the upper part, usually more or less spreading-pilose; flowers pink to nearly white, 2.5-3 cm. across, the peduncles sometimes absent, the pedicels often spreading- pilose, the bracts 3-6 mm. long; calyx-lobes glabrous, usually entire. Apr.-May. Mountains.