Vines, mostly herbaceous, the younger stems pubescent, the hairs uniseriate. Leaves elliptic or narrowly elliptic to obovate, acute, obtuse to shallowly rounded basally, to 10 cm long and 4.5 cm wide, pubescent, more so beneath, membra-naceous; petioles 3-11 mm long, weakly perfoliate, glandular in the axils. In-florescences corymbose, many-flowered, axillary and alternate, the peduncle 1-2 cm long, pubescent. Flowers with the pedicels 10-15 mm long, pubescent; brac-