(1) The fruit wall dehisces dorsiventrally into two halves liberating the seeds
(2) Stem is weak and climbs over the support with the help of tendrils
(3) Out of ten stamens in a flower, the filaments of nine stamens are fused to form one bundle and the tenth one remains free as a second bundle.
(4) Monocarpellary gynoecium, unilocular ovary, Non-endospermic seeds, marginal placentation