Perennial, usually with appressed hairs; roots all fibrous. Stems slender, erect, (15)-30-45 cm tall. Lvs simple, shallowly serrate. Basal lvs ovate, acute, cordate at base, 2-8 × 1-3 cm; petioles erect, 5-10 cm long. Cauline lvs smaller than basal, becoming lanceolate, cuneate at base, shortly petiolate. Fls (10)-20-numerous per stem, 7-10 mm diam. Pedicels erect, sulcate, (2)-3-6 cm long. Sepals 5, with appressed hairs, weakly recurved, obtuse, 2-3.5 mm long. Petals 5, yellow, obovate-cuneate, truncate, 2.5-4.5 mm long; nectary single, c. 1 mm from petal base, covered by a broad, triangular or retuse scale. Receptacle glabrous. Achenes 25-40, glabrous, hardly flattened, bordered, ovoid, tuberculate on faces; body 1.5-2 × c. 1 mm; beak c. 0.1 mm long.