Twiner or scrambler with branches angled in parts, the ultimate usuauy hirsute in parts; hairs white, crisped. Leaves 3-foliolate; petiole hirsute especially along the upper surface, about 5-10 mm, rarely 2 cm long; blade glabrous and without acarodomatia, 1-7-4 cm long and 0-5-1-4 cm broad (rarely larger, 4-5x2 cm); acute or broadly rounded at apex, mucronate, cuneate at base into a petiolule, central petiolule the longest; midrib prominent below and running into the petiolule at the base. Inflorescence glabrous, terminal on the branches and on the lateral branchlets, and axillary in axils of the upper pair of leaves only, 3-5-flowered, peduncle 1-2-5 cm long; pedicels 1-1 -5 cm long (rarely 2 cm long). Calyx usually 5-lobed, sometimes 6, 2-5-5-5 mm long; lobes from much shorter than the tube to about as long as the tube, 1-2-5 mm long, triangular, acuminate, conduplicate, apiculate, sinuses U-shaped. Corolla white, usually 6-lobed, tube 1 ? 5-2• 7 cm long; lobes up to 1 • 2 cm long, 5 mm broad. Fruit not seen.