Glabrous twining liana or with some hairs on stems, glabrescent coriaceous leaves 130mm x 11mm puberulent on nerves above, axillary cymes to 80mm with small bracts, of 20mm diameter green aging yellow flowers or purplish to white flowers, calyx with sepals 2mm long with glabrous lobes to 15mm, glabrous corolla lobes 7mm x 2.5mm, follicles to 110mm long x 10mm