Scandent glabrous vine or liana. Acutely serrated glabrous leaves to 27mm x 8mm. Whorls of greenish-yellow flowers with bracts to 1.5mm long, green calyx 7mm long with tube 3mm long, upper lip to 4mm long & lobes to 1.5mm long, corolla lobes brownish green to pinkish brown to 14mm long, with upper to 5mm long & lower lip to 2.5mm long. Fruit a nutlet to 3.5mm long.