Sometimes scandent epiphytic shrub, glabrous quadrangular stems, glabrous leaves to 190mm x 65mm, solitary terminal flowers subtended by triangular bracts to 3mm long, glabrous flowers to 8mm long, calyx to 0.5mm long, pale green to yellow corolla with tube to 50mm long & 6 triangular lobes to 9mm long, dark brown fruit to 120mm x 14mm