Herbs perennial. Roots robust, terete. Flowering stems erect or slightly curved at base, 16–30 cm tall, together with petioles grayish white tomentose and pilose. Radical leaves 3–10 cm including petiole; stipules brown, membranous, abaxially appressed villous; leaf blade 3-foliolate; leaflets sessile or terminal one shortly petiolulate, oblong-elliptic or obovate-elliptic, 1–3.5 × 0.7–1.5 cm, abaxially canescent tomentose, appressed white villous on veins, adaxially appressed pilose, sometimes sparsely canescent tomentose, base cuneate or broadly so, margin acutely or obtusely 6–10-serrate, apex acute or obtuse; cauline leaves 1–3; stipules ovate-lanceolate, herbaceous, abaxially densely white tomentose and villous, margin entire, apex rarely 2-or 3-fid; leaflets resembling those of radical leaves. Inflorescence terminal, laxly cymose-corymbose, many flowered. Flowers 1.5–1.8 cm in diam.; pedicel 1.5–2.5 cm, densely tomentose. Sepals triangular-ovate, apex acuminate; epicalyx segments fasciated or lanceolate, nearly equaling sepals, abaxially appressed pilose, apex subobtuse or acuminate. Petals yellow, obovate, 0.5–1 × as long as sepals, apex emarginate. Style subterminal, base inconspicuously thickened; stigma dilated. Achenes not seen. Fl. and fr. Jun–Jul.
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