Japan Flora: Small, deciduous, unarmed, dioecious shrub with creeping grayish brown branches and rather thick, green, thinly and minutely hairy branchlets; leaves elliptic, broadly ovate, or obovate-elliptic, 4-8 cm. long, 3-5 cm. wide, obtuse to rather abruptly acute, rounded to subcordate at base, ob­tusely serrulate except near the base, glabrate on upper side, sometimes pubescent especially on nerves beneath, the lateral nerves 8-12 pairs, ascending, nearly parallel and incurved at tip, the petioles 5-6 mm. long; pistillate flowers green, solitary in the axils of the branchlets, the pedicels 5-8 mm. long, gla­brous; calyx-lobes 5, ovate-deltoid, acuminate, 3-nerved; fruit globose, 7-8 mm. across, red, becoming black at maturity, with 3 stones. Alpine regions.

Hokkaido (Mount Yubari and Mount Apoi); rare.