Erect, 1.5-3 m tall perennial herb to shrub, stellate pubescent, velvety. Leaves 4-13 cm across, broadly ovate, subentire to irregularly serrate or serrulate, obtuse to acuminate at apex, cordate at base, 7-9 nerved, velvety and stellate pubescent on both sides, more so beneath; petiole 2-15 cm long; stipules lanceolate, falcate, 4-7 mm long, c. 2 mm broad, reflexed, caducous. Flowers axillary, basically solitary, appearing in racemes or panicles in terminal branches by the reduction of leaves; pedicel 1-3.5 cm long, uniformly hairy, articulate from below the middle to near the apex. Calyx 8-10 mm long, in fruit up to 12 mm, fused to or below the middle, pubescent on both sides, stellate without and fasciculate within; lobes 4-8 mm long, ovate, lanceolate to broadly ovate or deltoid, acuminate. Corolla 3-4.5 cm across, yellow; petals 1.5-2 cm long, 1.3-1.7 cm broad, obovate, oblique, slightly notched, claw hairy on the margin. Staminal tube ± 5 mm long, stellate pubescent. Fruit globose, 10-15 mm across, villose, ridges and furrows conspicuous, visible, mericarps (20-) 24-28 (-31), 7-9 mm long, 4-5 mm broad, reniform, obtuse, laterally smooth, and glabrous, hairy on the dorsal margin, separating after dehiscent. Seeds 3 in each mericarp, 2-2.5 mm long, c. 2 mm broad, usually reniform.