Twining lianas. Stem and branches terete,
glabrescent or thinly hairy when young. Leaves fleshy, ovate-oblong, elliptic,
oblong or linear-oblong, glabrescent or thinly hairy. Cymes umbellate, solitary
at the nodes, pubescent. Calyx lobes ovate to ovate-lanceolate, margin ciliate,
glandular within at the base. Corolla sub-rotate or shallowly campanulate,
lobes ovate to ovate-lanceolate with ciliate margin, imbricate to the right.
Corona absent. Gynostegium short, within the tube. Anthers broad, with thin
white membranous tip. Pollinia oblong-lanceolate, erect, solitary. Caudicles
narrow, long, curved at the back perpendicularly to the corpuscles, corpuscles
linear, narrow. Follicles ovoid or globose. Seeds without a coma.