Tree, shrub or slender liane to 10m with lenticellate stems. Coriaceous glabrous leaves to 200mm x 70mm. Axillary thyrse to 225mm long with bracts to 3.2mm x 1.3mm, greenish-yellow calyx to 3mm x 4.5mm with 4-5 lobes to 2mm x 1.5mm, yellow or yellowish-white corolla to 42mm x 45mm opening to 14 at mouth with lobes to 8mm x 6mm. Yellow warty fruit to 11mm x 6mm x 5.8mm.