Herbs perennial. Roots robust, terete. Rhizome enlarged. Flowering stems erect or ascending or low and tufted, 4–13 cm tall, together with petioles pilose or glabrescent. Radical leaves 7–16 cm including petiole; stipules brown, membranous, subglabrous; leaf blade pinnate with 2–8 pairs of leaflets; leaflets opposite, at intervals of 5–8 mm, subsessile, abaxially densely appressed villous, or glabrescent and hairy only along midvein, adaxially sparsely appressed pilose or later glabrescent, margin pectinate to midvein; segments fasciated to fasciated lanceolate, apex acuminate; cauline leaves 1 or 2; stipules green, herbaceous, abaxially appressed villous, margin dissected into linear segments; leaf blade 2-pinnately dissected into linear segments. Inflorescence terminal, 1–3(–5)-flowered. Flowers 0.8–1.5 cm in diam.; pedicel 1.5–3 cm, appressed pubescent. Sepals triangular-ovate, apex acute or acuminate; epicalyx segments lanceolate, nearly equaling sepals, abaxially appressed pilose, apex acute or acuminate. Petals white and purple-red at base or yellow throughout, obovate, nearly 1/2 as long as sepals, apex emarginate. Style subterminal, base slightly thickened; stigma dilated. Achenes smooth. Fl. and fr. Jul–Sep.
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