Liana to 10m, young branchlets stiate & sparsely lenticellate, normally glabrous. Bifoliolate or trifoliolate leaves with simple tendrils, glabrescent leaflets to 70mm x 35mm. Terminal or axillary dichasia with bracts to 2.5mm long, pale green to pale yellow calyx 6mm x 4mm. corolla to 42mm x 13mm, white or pale pink outside & yellow inside, tube to 25mm long, lobes to 9mmx 12mm.