Herbs perennial. Flowering stems 3–25 cm tall, together with petioles appressed sericeous-pilose. Radical leaves 2.5–23 cm including petiole; auricles of stipules free, apex acute to acuminate; leaf blade pinnate with 5–25 pairs of leaflets; leaflets oblong, 0.3–1.5 cm × 2–8 mm, becoming gradually smaller toward base of leaf, abaxially densely appressed villous on veins, becoming glabrescent or sericeous-villous, adaxially sparsely villous or glabrescent, or both surfaces glabrous except for tufts of hairs on apices of teeth, margin 3–15-serrate; cauline leaves: auricles of stipules lanceolate to ovate, herbaceous, margin entire, apex acuminate; leaf blade leafletlike, margin entire. Inflorescence cymose. Flowers 1.5–2.5 cm in diam.; pedicel 1–4 cm, appressed villous. Sepals elliptic to ovate; epicalyx segments lanceolate to elliptic, apex obtuse or acute. Petals yellow, oblong to obovate, 3–7 × 2.5–5.5 cm, apex rounded. Style lateral; stigma slightly dilated. Achenes smooth or rugose. Fl. and fr. Jul–Sep.
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