Japan Flora: Shrub to small tree; leaves obovate to broadly so, caudately acuminate, 4-8 cm. long, 2-4.5 cm. wide, often diinly pilose beneath while young, sometimes appressed-pilose above, pale green beneath, incisely and doubly acute-toothed, the petioles 7-15 mm. long, glabrous; flowers 1-3, in sessile umbels or in short-peduncled umbellike corymbs, pink, the pedicels 2-3 cm. long, glabrous; calyx-tube glabrous, about 6 mm. long, about 1.5 times as long as the lobes; petak 10-12 mm. long, retuse. May-July. High mountains.

Hokkaido, Honshu (centr. and n. distr.).

var. kurilensis (Miyabe) Wils.  Petioles or pedicels or both pilose. Hokkaido, Honshu (centr. and n. distr.). Kuriles and Sakhalin.