Rhizomatous or stoloniferous perennial, glabrous or sparsely pilose. Leaves with petioles 8–42 cm long; lamina deeply palmatisect, 3–7 cm wide; ultimate segments 2–9 mm wide, with broad ± tridentate blunt apex. Flowering stems 12–45 cm high, 2–5-flowered. Sepals 5, spreading, obovate, 5–8 mm long, ± pilose below. Petals 5–14, oblong to obovate-cuneate, 8–18 mm long, golden-yellow; nectary near petal-base, pocket-like, with lobe 0.5–1 mm long, slightly rounded to shallowly emarginate. Stamens c. 30–40. Pistils c. 40–100. Receptacle moderately hispid throughout. Achenes ± semiorbicular, 1.8–3.0 mm long; faces transversely rippled with c. 6 ridges; dorsal margin distinctly keeled; beak slender, erect or recurved, c. 1–2 mm long.
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