Japan Flora: Perennial herb with short rhizomes; stems simple or slightly branched, sometimes few together, sometimes solitary, short velvety-puberulent; leaves puberulent, sometimes sparingly long-pilose, the lateral leaflets small, 1 or 2 pairs, sometimes obsolete, often with a pair of accessory small leaflets between the larger ones, the terminal leaflet orbicular to broadly ovate, 3-6 cm. long and as wide, rounded to obtuse at apex, subcordate to broadly cuneate at base, toothed, usually 3-lobed, the cauline leaves short-petioled, usually simple, deltoid-orbicular, often 3-lobed; flowers few, rarely 1, loosely arranged, long-pedicelled, about 1.5 cm. across, yellow; calyx-segments narrowly ovate-deltoid, acute, reflexed, densely puberulent, sometimes with a few long spreading hairs. June-Sept. Woods and thickets in hills and low mountains;

Hokkaido, Honshu, Shikoku, Kyushu; common. China.