Japan Flora: Young branches glabrous or glabrescent; leaves membranous, vivid-green, ovate to broadly lanceolate, 3.5-10 cm. long, 2-4 cm. wide, acuminate, minutely toothed, scattered stellate-pubescent above, somewhat paler beneath with 5- to 8-rayed stellate hairs or subglabrous, the petioles 3-8 mm. long; racemes often branched at base; flowers white, the pedicels slender; calyxteeth deltoid, glabrous; petak about 10 mm. long; capsules about 4 mm. across. May-June. Mountains;

Honshu (Kanto Distr. and westw.), Shikoku, Kyushu.

var. zentaroana (Nakai) Hatus. Leaves larger and prominently stellate- pubescent beneath. Occurs with the typical phase.

var. ogatae (Koidz.) Ohwi Closely resembles the preceding variety, but the inflorescence is paniculate with more numerous smaller flowers. Shikoku.