Willughbeia edulis

Willughbeia edulis or rubber vine fruit is a vine species bearing tropical fruit in the family Apocynaceae.

Taxonomy

Its species epithet edulis comes from Latin which means "edible". In fact, it is one of the rare climbing plants of Southeast Asia of which the fruits are eatable.

Description

It is a yellow sour edible fruit found in: India, Indo-China include Peninsular Malaysia. It may be known under a number of synonyms including "Willughbeia cochinchinensis".
After its reddish lenticelled stems are excised, they exude a milky latex which produces a rubber called chittagong. The roots can be used as a red dye and it may be used medicinally in parts of Asia including Cambodia.

Vernacular names

Local names include: in Cambodia; gedraphol, laleng-tenga, bel-tata in India;,,, and in Thai; in Isan dialect. in Myanmar; and in Vietnamese.
in Indonesia refers to a similar edible relative, W. sarawacensis.