Stems prostrate to ascending, sometimes erect, (1–)2–4(–6) dm, hairs at base not particularly stiff, not tubercle-based, glands absent or sparse, inconspicuous. Leaves pinnate (with distal leaflets ± confluent), 5–12(–15) cm; petiole 1–6(–8) cm, long hairs sparse to common, ± ascending, sometimes erect or appressed, 0.5–1(–1.5) mm, usually ± weak, crisped hairs absent or sparse to common, glands sparse to common, inconspicuous; leaflets 5–9, on distal (1/4–)1/2–2/3 of leaf axis, ± separate, largest ones oblanceolate to elliptic or obovate, 1–2(–4) × 0.6–1.2(–2.5) cm, distal 2/3 to ± whole margin ± evenly incised 1/4–1/2 to midvein, teeth (2–)4–6 per side, surfaces glabrate or sparsely hairy, glands mostly absent. Inflorescences (10–)20–100+-flowered. Pedicels 0.5–2(–2.5) cm. Flowers: epicalyx bractlets ± elliptic to narrowly ovate, 3–5(–7) × 1–2(–3) mm; hypanthium 3–5 mm diam.; sepals 3–5(–6) mm, apex acute to apiculate; petals yellow, obovate, 2.5–5 × 2–4.5 mm; stamens 20(–25), filaments 0.7–1.8(–2) mm, anthers 0.3–0.5 mm; carpels ca. 100, styles 0.5–0.6 mm. Achenes brown, 0.7–1.3 mm, usually strongly rugose, developing a smooth, corky protuberance on ventral suture, often as large as body of achene. 2n = 28.
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