Stout root-climbing liana to 15m, often epilithic. Slightly or extensively perforated leaves to 530mm x 190mm glabrescent beneath when young. Stoutly-beaked fleshy pale to dark yellow spathe to 270mm x 130mm. Greenish-yellow spadix to 170mm x 25mm ripening to greenish-yellow infructescence to 150mm x 30mm