Japan Flora: Rhizomes creeping, rather slender, short; radical leaves long- petiolate, reniform or reniform-orbicular, 5-10 cm. long, 3-6 mm. wide, regularly coarse-toothed, nearly glabrous; scapes 5-25 cm. high; inflorescence corymbose, densely flowered, the peduncles and axis soft short-pubescent; calyx-lobes recurved, narrowly ovate, about 2 mm. long, obtuse; petals obliquely spreading, white, sometimes with a reddish purple hue, oblong, about 3 mm. long, shortly clawed below; stamens as long as to slighdy shorter than the petals, the filaments slightly flattened and dilated toward tip; capsules 4-5 mm. long; carpels oblong, erect, with a spreading apex; style very short; seeds broadly fusiform, subacute, about 0.7 mm. long. July. Wet places along streams and ravines in mountains and alpine regions.
Hokkaido (Rishiri Isl. and Mount Dai- setsu); rare. Sakhalin, Kuriles, and Kamchatka.