Twining lactescent vine, lenticellate glabrous stems. Glabrous leaves to 60mm x 22mm. Axillary or pseudoterminal racemose cymes of 8-20 pale yellow flowers, floral bracts to 2mm x 0.3mm, 5-parted calyx with lobes to 2.5mm x 1.3mm, corolla to 3mm long with 5 overlapping lobes to 3mm x 2.5mm