Climber to 10m, glabrescent striate lenticellate young twigs, leaves to 220mm x 75mm glabrous above except midrib & nerves & glabrescent beneath, fainly scented extra-axillary flowers with bract to 8mm long, pubescent sepals to 9mm x 4mm, yellow petals, outer pubescent petals to 80mm x 2mm, inner glabrous petals 10mm long, pubescent fruit 12mm x 7mm