Climber, up to 500 mm tall, pubescent, sap milky. Leaves somewhat fleshy, ovate to elliptic-oblong, up to 25 x 18 mm, dark green above, paler below. Flowers 5-10, opening together in extra-axillary, umbel-like clusters, on peduncles 5-30 mm long, pedicels up to 5 mm long. Corolla rotate, lobed to near base, lobes ascending, twisted in upper half, 5-8 x 2 mm, brown. Corona tubular, with 10 spreading lobules at mouth, 5-8 x 3 mm, white, staminal column ± as long as corona, with long stipe.
Climber to 60 cm, with horizontal runners, sometimes hairy; sap milky. Leaves opposite, ovate, slightly fleshy. Flowers in extra-axillary clusters, brown sometimes green with twisted petals, corona white, twice as deep as wide, gynostegium clearly stalked, as long as corona.