Shrub, sometimes scrambling to 5m with puberulous branches, leaves to 175mm x 85mm glabrous above except midrib, nerves and veins, puberulous beneath. Yellow, greenish or cream 3-lobed flowers pale lilac inside to 3.5mm long and 7mm dia., lobes 3mm x 3.5mm puberulous 4-angular capsule to 380mm long