Tufted perennial; roots fibrous to somewhat tuberous. Stems and petioles with long spreading hairs at least toward base. Basal leaves with petioles 8–20 cm long; lamina trifoliolate; broadly ovate in outline, 35–80 mm long, hirsute; leaflets ternately lobed and coarsely dentate; stem-leaves similar, less divided, grading to the linear-lanceolate sessile bracts. Flowering stems 2–8-flowered, 20–60 cm high. Sepals 5, becoming reflexed, ovate, 3–6 mm long, hairy below. Petals 5, obovate-cuneate, (6–) 10–20 mm long, golden-yellow; nectary near petal-base, with lobe cuneate or oblong, 0.7–1.5 mm long, and margins adnate to petal for 1/4–4/5 lobe length. Stamens 40–60. Pistils 20–45. Receptacle glabrous in stamen zone, shortly hispid above. Achenes obovate, 3–5 mm long, compressed; marginal ridges prominent, occasionally sparsely ciliate; beak slender, 1.5–3 mm long, recurved.
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