Liana with quadrangular glabrescent stems, glabrous leaves to 65mm x 35mm with crenulate serrulate margin, solitary flowers or axillary cymes to 30mm x 30mm with glabrous bracts to 0.8mm long & bracteoles, yellow-white flowers with sepals to 0.5mm x 0.3mm, 1mm x 0.5mm glabrous petals, capsule 40mm x 25mm