Subshrubs erect, 1-2 m tall; most parts sparsely stellate puberulent, simple hairs absent. Stipule filiform, 3-4 mm; petiole 2-6 cm; leaf blade orbicular or ovate, 5-10 × 3-7.5 cm, base rounded, margin minutely crenate, apex shortly acuminate. Flowers mostly subterminal, in umbel-like terminal clusters, often on reduced axillary, 2-7 cm shoots. Pedicel 0.6-2.5 cm, articulate at middle, sparsely stellate pilose. Calyx 8-11 mm, sparsely stellate pilose, lobes 5, triangular. Corolla yellow, 2-3.5 cm in diam.; petals 5, obovate, ca. 1.2 cm. Filament tube ca. 1 cm, glabrous, filaments numerous, slender, ca. 3 mm. Style branches 8-9. Schizocarp nearly globose; mericarps 8 or 9, with vertical grooves, apex 2-awned, exceeding calyx, awn 3-6 mm, retrorsely hispid. Seeds ovoid, apex densely brown puberulent. Fl. winter-spring.
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