Tufted perennial; roots tuberous, abruptly tapered. Leaves mostly basal; petioles 1–9 cm long with short appressed hairs; lamina ovate to deltate in outline, 12–25 mm long, deeply trifid to ternately or biternately dissected, or commonly trifoliolate with narrowly trifid or further divided leaflets; lobes lanceolate to narrowly linear, acute. Flowering stem 1–3-flowered, 5–25 cm high, hairs appressed. Sepals 5, spreading, ± ovate, 3–5.5 mm long, hirsute below, rarely glabrous. Petals 5, obovate-cuneate, 8–14 mm long, bright yellow; nectary near petal-base, with lobe cuneate, 1.5–2 mm long, truncate or emarginate, free for ± 1/2 its length. Stamens 30–35. Pistils 15–35. Receptacle glabrous in stamen zone, hirsute above. Achenes lenticular to obcuneate, 1.1–1.5 mm long; margins usually thickened, often with short irregular intersecting ribs; beak slender, 0.9–1.2 mm long, straight, tip recurved.
Usually found on moist or seasonally flooded ground in grassland, heath and forest, or sometimes in mossy crevices amongst rocks.
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