Japan Flora: Shrub with glabrous branchlets; leaves ovate or obovate-elliptic, 2.5-45 cm. long, 1.5-2 cm. wide, obtuse, rarely retuse, entire, sparsely ciliate, minutely glandular-hairy on upper side, glaucous and sometimes sparsely glandular-puberulent beneath, the midrib beneath loosely appressed-hairy, the petioles 3-6 mm. long; flowers 4-8, umbellate, campanulate, 12-15 mm. long, rose-purple, usually 4-merous, the pedicels loosely glandular-pilose, 15-2.5 cm. long; calyx-lobes glandular-ciliate; capsuks 3-4 mm. long, short white-hairy while young. Mountains.