Japan Flora: Perennial herb with spreading pilose hairs; stems 50-100 cm. long, slightly branched above; radical leaves withering before anthesis; lower cauline leaves long-petiolcd, the upper sessile; stipule­segments lanceolate to narrowly ovate, acute; leaflets 3, ovate or narrowly so, or ovate-oblong, 3-8 cm. long, 2-3.5 cm. wide, acute to short-acuminate, slighdy appressed-pilose on upper side, paler beneath, the teeth ovate, acute, often dupli­cate; inflorescence branched, many-flowered; flowers about 10 mm. across; calyx-segments narrowly ovate, acuminate; bracts of caliculus broadly lanceolate, subobtusc to acute; petals yellow, broadly obovate, as long as the calyx-segments, about 4 mm. long; anthers small, ovate-orbicular; receptacles short-pilose; achenes many, about 0.8 mm. long, obsoletely rugulose; styles rather stout, about 1 mm. long. June-Sept. Mountains.

Hokkaido, Honshu, Kyushu.