Shrubby plant, trunk up to 1 m, stem simple or branched. Leaves 45-75 x 6-7 cm, erect, rigid, apex strongly pungent, dark mossy-green. Margins denticulate or entire. Flowers in large panicles, with usually ascending branches, cream tinged purple. Perianth 5-7.5 cm in diameter, segments 40-60 mm. Fruit fleshy. 7.5-10 cm, black-purple.