Shrub with exfoliating bark, young branches with 2 longitudinal lines of hairs; leaves oblong or narrowly ovate, acute or abruptiy acuminate, acutely toothed, short-pilose on nerves of upper surface, coarsely hairy beneath especially on nerves, subsessile; flowers 1 or 2 in upper leaf-axils and terminal on branchlets; calyx deeply bifid, the upper lobes broadly oblanceolate, 3-toothed, the lower lobes narrower, entire or 2-lobed; corolla 3.5-4 cm. long, pale yel- low; capsules narrowly fusiform-oblong, 1.5-2 cm. long, longitudinally striate, glabrous, crowned with persistent calyx-lobes.
July.
Thickets on alpine slopes;
Hokkaido, Honshu (n. distr.). s. Kuriles, Sakhalin, Ussuri, Amur, and Ochotsk Sea region.