The species grows as a woody vine on rainforesttrees. Its stem has a diameter of up to 15 cm and exudes a red sap when cut. The leaves are 12–22 cm long by 6.5–12 cm wide. The flowers have fleshy tepals, concave on the inner surface; the female flowers are 5–10 mm in diameter; the male flowers are smaller, about 2 mm long. The fleshy fruitsgrow up to about 8 by 12.5 cm in size and containroundseeds 3.5–4 cm in diameter.