This vigorous vine with long narrow flowers resembling pipes is widely distributed from the Himalaya to Sri Lanka through South East Asia (includes Myanmar, Indonesia, Indochina, and Thailand) and China, to Oceania (includes the whole of Malesia, the Solomon Islands and Queensland in Australia). The species is found in forests and open lowland thickets, climbing over bushes and trees.
The caterpillars of two rare butterflies, the Common Birdwing and Common Rose, feed on the leaves of this plant.
The species is used medicinally. The Malays pound the leaves, apply it to the head to treat fever. In Indonesia, poultice are made with leaves of the species; it is applied to the swollen abdomen or limbs. In the Philippines, snake bites and malaria is treated with the plant. In India, the roots are considered a tonic, carminative and emmenagogue. In Hong Kong, this species is under protection.