Climber to c. 10 m, sparsely to densely greyish pubescent. Leaves spirally arranged, herbaceous, hairy especially on and near the nerves beneath, broadly ovate to elliptic (-oblong), entire, top acute or up to 1 cm acuminate, up to 2 mm mucronate, base cordate to rounded, up to 2 mm peltate, 5-14 by 3-9½ cm, 3(-5)-plinerved, the nerves arching towards the apex, larger veins often ± trabeculate; petiole 2-4 cm. Glands on lamina 1-5 submarginal on either side, ¼-½(-1) mm ø, petiolar glands ø. Stipules linear, c. ½ mm. Inflorescences sessile, 1-2-flowered, either with a tendril or not; pedicels ¾-1½ cm; bracteoles 3, linear, 1½-4 mm, rather near the articulation. Tendrils 6-25 cm. Flowers (sub)glabrous; stipe 5-12 mm; hypanthium bowl-shaped, 3-4 by 9-12 mm. Sepals lanceolate, subacute to obtuse, ± hairy at the top, 4-5 by ½-¾ (-1) cm. Petals lanceolate, acute, 3½-4½ cm by 4-6 mm, membranous, glabrous. Corona double, outer corona erect, tubular to ± skirt-shaped, ± fleshy, 2-3 cm, with up to ¼ mm deep irregularly undulate-lobed edge; inner corona 1-2 mm high, curved inward, stiff, up to halfway laciniate into acute teeth; both coronas inserted on the rim of the hypanthium; disk fleshy, annular sharp-edged, c. mm high near the base of the androgynophore, connected by 5 low septa to the hypanthium. Androgynophore 2½-4 cm. Filaments 7-12 mm; anthers lanceolate, bluntly c. ½ mm apiculate, shortly sagittate at base, 8-9 by 2-3 mm. Ovary 2 mm stalked, densely pubescent, obovate-ellip-soid(-oblong), 5-7 by 3-4 mm; styles free, 5-7½ mm; stigmas c. 2 mm ø. Fruit subglobose to ellipsoid, sometimes ± fusiform, excluding stipe 2½-3½ by 2-2½ cm; pericarp coriaceous, c. 1 mm ø, sparsely to densely pubescent. Seeds c. 100-200, obovate-oblong, 2-2½ by 1-1¼ by ⅔ mm, 3-5 pits per ø; embryo 1½-2 mm, cotyledons obovate, broadly obtuse, c. 1 by ⅔ mm.