Japan Flora: Glabrous, without radical leaves; stems 5-20 cm. long; stolons elongate after anthesis, sparsely leafy, without a tuft of rosulate leaves at apex; leaves short-petiolate, broadly ovate to ovate-orbicular, 5-20 mm. long, 5-18 mm. wide, with incurved teeth; flowers more than 10, yellowish green; calyx-lobes suborbicular, about 1 mm. long, erect, concave on back; stamens 4, about 0.5 mm. long; capsules ascending, the valves unequal; seeds broadly ovoid, about 0.7 mm. long, 1-ribbed, minutely mammillate. Apr.-May.

Hokkaido, Honshu, Shikoku, Kyushu. Korea, s. Kuriles, and China.