Brachystemma calycinum
It has the stems extended or climbing between bushes, with a size of 6 m in height, glabrous or superior hairy, straight, bright, fragile epidermis. 1 cm petiole; Leaves 3.5 to 7.5 × 1 to 1.5 cm, apex accumulated. The inflorescence in the form of lax, with many flowers. Pedicel 2 to 5 mm. Sepals closely ovate, 4 to 7 mm, obtuse apex.