Perennial hemi-epipetric climbing herb. Glabrous leaves to 260mm x 200mm with denticulate margins. Terminal panicles to 160mm long, staminate flowers with 4 pale green tepals to 7mm x 6.5mm, pistillate flowers with 6 pale green tepals to 10mm x 5mm. Winged capsule to 150mm x 140mm, including wings.