Liane to 15m with lenticellate bark. Glabrous leaves to 230mm x 118mm. Axillary inflorescence to 63mm long on young & old wood with bracts to 5mm x 1.2mm. Warty green calyx to 10mm x 7.8mm with 4 lobes to 8mm x 7mm, pale yellow to orangish or brownish corolla to 46mm x 7mm expanding to 30mm at mouth with lobes to 13mm x 12mm. Glabrous green fruit to 31.5mm x 21.5mm x 21mm