Erect undershrub, stellate pubescent. Leaves elliptic to obovate, 1-2 cm long, 0.5-1 cm broad; stipule filiform, c. 5 mm long; petiole 5-10 mm long. Flowers usually solitary, sometimes paired, pedicel 5-6 mm, in fruit 1-2 cm long. Calyx 5 lobed, 4-6 mm long; lobes 2-3 mm long 1-2 mm broad, triangular, acute-acuminate. Corolla yellow, slightly longer than calyx. Fruit depressed globose, pubescent above; mericarps same as in Sida yunnanensis Hu.