A deciduous tree, with somewhat bottle shaped trunk. Leaves with 4.5-12 cm long petiole; lamina deeply palmately 5-7-lobed, 6-10 cm long, 10-16 cm broad, glabrous on both sides; lobes broadly lanceolate, ovate, rhomboid or somewhat rectangular, acute, acuminate or cuspidate. Raceme short. Flowers brownish, pubescent, becoming rusty when dry; pedicel 5-10 mm long, articulate. Calyx tubular-campanulate, white, 1.5-2 cm long, 1-1.5 cm across, lobed half way down; lobes lanceolate. Stamens hairy. Ovary tomentose, 2-3 mm long; styles free, cohering above. Follicles shortly stalked, oblong-triangular, 5-7.5 cm long, glabrous.