Herbs perennial. Roots terete, with fibrous rootlets. Flowering stems erect or ascending, 15–55 cm tall, pubescent and sparsely villous. Radical leaves 6–25 cm including petiole; stipules brown, membranous, abaxially pilose or glabrescent; petiole pubescent and pilose; leaf blade 3-foliolate; leaflets sessile or shortly petiolulate, elliptic, ovate, or obovate, abaxially pubescent, pilose on veins, adaxially appressed pilose, base rounded or broadly cuneate, margin coarsely obtusely many serrate, apex obtuse, rarely acute; cauline leaves petiolate, becoming sessile higher up stem; stipules green, herbaceous, abaxially pilose, margin 2–4-serrate; leaflets resembling those of radical leaves. Inflorescence corymbose-cymose, laxly few flowered. Flowers 2.5–4 cm in diam.; pedicel 2–3 cm, pubescent. Sepals triangular-ovate or oblong-ovate, apex acute, rarely acuminate; epicalyx segments elliptic or oblong-elliptic, nearly equaling or longer than sepals, margin entire or sometimes parted, apex obtuse or acute. Petals yellow, obcordate, apex emarginate. Style terminal, base markedly thickened; stigma dilated. Achenes rugose. Fl. and fr. Jul–Dec.
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