Stout fleshy glab. glaucous herb up to ± 15 cm. tall; stock stout, ± 1 cm. diam., up to 15 cm. or more long, with milky juice; main roots long, thick. Radical lvs on petioles 5-15 cm. long, thickening upwards; sheaths us. villous. Lamina broad-reniform to suborbicular in outline, (3)-5-10 cm. diam., palmately divided to near base into 5-7 deeply, irregularly incised segs. Scape thick, producing 1-5 peduncles; cauline lvs divided into linear segs, ± surrounding fls. Fls 2-4 cm. diam.; sepals 5, oblong, glabrate; petals 5-15, narrow-cuneate, yellow; gland 1, basal. Fruiting heads globose, ± 2 cm. diam.; receptacle swollen, papillose. Achenes glab., turgid; styles flattened-subulate, widened towards base and continued as wings.

2n = 48

2n = 48

Tufted perennial, 5-15 cm tall; rhizome stout, creeping. Lvs few, orbicular or reniform, deeply 5-lobed or ternatisect, fleshy, glaucous, 10-25-(35) cm long, glabrous or with silky hairs; lobes either again deeply divided into narrow segments, or rounded and crenate. Fls 1-3-(5) per stem, 2-5 cm diam. Pedicels erect, glabrous. Sepals spreading, glabrous or sparsely hairy. Petals 10-16, yellow, narrow-cuneate; nectary single, 2-4 mm from petal base, naked. Receptacle glabrous. Achenes many, turgid, winged on margins, glabrous; body 3-4 mm long; beak broad, flattened, curved, 3-4 mm long.