Japan Flora: Shrub with green glabrous branches; leaves membranous, ovate to broadly so, sometimes elliptic, 5-10 cm. long, 3.5-6 cm. wide, very obtuse or subrounded at both ends, entire, glabrous on upper side, yellowish and with axillary tufts of hairs beneath, the lateral nerves 7-11 pairs, the petioles 8-20 mm. long, glabrous; racemes terminal, simple or often with a few branches at base, densely many-flowered, glabrous, 5-8 cm. long, erect, the pedicels 3-4 mm. long; calyx-lobes deltoid, rather acute. July-Aug.

Mountains bordering Japan Sea side of Honshu from Uzen to Tajima Prov.