A slender woody climber. It has white sap. The leaves are simple and 4-12.5 cm long by 1.6-6 cm wide. They are fleshy. The leaf stalk is 7-20 mm long. The flowers are in a panicle at the ends of the branches. The flowers are 15 mm across. There are 5 petals. The flowers are yellow-green or yellow-brown. The fruit is a green or brown follicle. It is 5-8 cm long. It is ribbed and has several seeds.