Japan Flora: Branches glabrous; leaves spreading, narrowly oblong to broadly lanceolate, 6-12 mm. long, 2.5-3 mm. wide, obtuse, acute at base, entire, glabrous and with a groove above, deep green, densely white-puberulent except on the raised midrib, the petioles very short, ascending, white-puberulent on upper side; flowers 4-5 mm. across, pale rose, glabrous, the pedicels erect, glabrous, 4-10 mm. long; calyx-lobes broadly lanceolate, obtuse, about 2 mm. long; corolla 4- to 5-lobed, the lobes deltoid-ovate; capsules ovate-globose, acute, 3-4 mm. long, the persistent style slightly shorter than the capsule. July. Dry alpine slopes and rocky cliffs;

Hokkaido, Honshu (centr. and n. distr.); rather common. Kuriles, Sakhalin, and widely distributed in alpine and Arctic regions of the N. Hemisphere.