Herbs perennial. Roots terete. Flowering stems ascending, ca. 15 cm tall, together with petioles spreading villous and pubescent. Radical leaves 3–5 cm including petiole; stipules brown, membranous, abaxially villous; leaf blade pinnate with 2 pairs of leaflets; leaflets opposite, at intervals of 5–8 mm, sessile, obovate or oblong, apical 3 large, abaxially densely spreading white villous, adaxially appressed pilose, base cuneate, margin obtusely serrulate, apex obtuse; cauline leaves: stipules green, herbaceous, abaxially densely pubescent and villous, margin entire or 2-or 3-serrate; leaf blade 3-foliolate; leaflets resembling apical 3 of radical leaves. Inflorescence laxly cymose. Flowers 1–1.6 cm in diam.; pedicel 0.5–1.5 cm, densely pubescent. Sepals triangular-ovate, apex acute to acuminate; epicalyx segments elliptic, shorter than sepals, abaxially villous and pubescent, apex obtuse or acute. Petals yellow, obovate, nearly 2 × as long as sepals, apex emarginate. Stamens ca. 20. Style subterminal, base thickened; stigma not dilated. Achenes not seen.
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