Herbs perennial. Roots stout, terete, slightly fleshy. Flowering stems subspreading to ascending, slender, 15–30 cm tall, together with petioles pilose and sparsely tomentose, usually glabrescent in lower part. Radical leaves 6–20 cm including petiole; stipules tinged brown, membranous, abaxially pilose, rarely glabrescent; leaf blade pinnate with 4–8 pairs of leaflets; leaflets opposite, rarely alternate, at intervals of 1–2.5 cm, shortly petiolulate or subsessile, ovate, elliptic-ovate, or oblong-obovate, 1–2.5 × 0.5–1.5 cm, thinly papery, abaxially grayish white tomentose and pilose, adaxially appressed pilose or glabrescent, base cuneate or broadly so, margin distally 4–7-dentate-lobed or-serrate, on basal leaflets only 2-or 3-dentate-lobed; cauline leaves: stipules green, ovate, papery, margin entire; leaf blade 3-foliolate; leaflets resembling those of radical leaves. Inflorescence laxly several flowered. Flowers 1–1.5 cm in diam.; pedicel slender, 3–4 cm, pilose or tomentose. Sepals triangular-ovate, apex acute or acuminate; epicalyx segments fasciated lanceolate or elliptic-lanceolate, shorter than or rarely nearly equaling sepals, abaxially pilose and white tomentose. Petals yellow, obovate, 0.5–1 × as long as sepals, apex emarginate. Style subterminal, base slightly thickened; stigma capitate. Achenes smooth. Fl. and fr. Oct.
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