Liana to 3.5m with pubescent lenticellate stems becoming glabrate. Glabrous leaves to 80mm x 75mm, sometimes lobed, lobes to 70mm. 2-3 flowered umbels, white flowers with bracts to 1mm, 5 sepals to 5mm long, 5 petals to 5.5mm long with tube to 2.5mm.