Cissus quadrangularis

Description: Cissus quadrangularis is a succulent climber with green stems and branches. The stems are quadrangular in shape, buff coloured with greenish tinge, dichotomously branched, sub-angular, glabrous, fibrous and smooth, often leafless. They are winged but the wings are never corky. The tendrils are opposite the leaves. 

Flowering and Fruiting: Spring and early summer.

Economic Importance: Because of its significant source of carotenoids, triterpenoids and ascorbic acid, Cissus quadrangularis is used for the gastrointestinal diseases in traditional medicine, and has gained significant recognition on human nutrition. 

Reference: https://en.wikipedia.org/wiki/Cissus_quadrangularis