Prostrate to spreading sparsely hairy herb; stock stout to slender, with ∞ slender roots; stems us. several, up to 15 cm. long. Radical lvs on slender petioles 1·5-5-(15) cm. long; sheaths broad, ± pilose; lamina 6-20 × 5-15 mm., broad ovate-cuneate, us. rather deeply 3-lobed, lobes sts again ± deeply lobed. Cauline lvs in clusters, with petioles up to 5 cm. long, lamina similar, smaller. Scapes or peduncles nude, in axils of cauline lvs. Fls small, ± sessile at anthesis; sepals 5, glab., scarious, ovate; petals (2)-3-5, narrow-obcuneate, bright yellow, apex rounded; gland 1, basal. Fruiting heads ± 4 mm. diam.; achenes small, ± swollen to ± compressed; margined, broadly ovate in outline; style straight, hooked, inconspicuous.

2n = 32

Perennial; rosettes tufted, on stout decumbent stolons. Basal lvs broadly ovate to triangular, truncate to shallowly cordate at base, usually 3-fid to about 1/2 way, 1-2-dentate, glabrous above, usually weakly hairy beneath and on petiole, (7)-10-20 × (7)-10-20 mm; cauline lvs opposite or in loose whorls, similar to basal but smaller and more rounded at base. Pedicels short at flowering, terete, sparsely hairy, elongating to (2)-3-8-(12) cm at fruiting. Fls 6-9 mm diam. Sepals spreading, sparsely hairy or almost glabrous. Petals (2)-5, yellow, obovate; nectary single, 1-1.5 mm from petal base, covered by a small triangular scale. Receptacle sparsely to moderately hairy. Achenes 10-30, slightly flattened, glabrous, sometimes purple-blotched; body 1.5-1.8 mm long; beak straight, c. 0.3 mm long.