Tree, 7-8 m tall, spines axillary and sharp. Leaves 50-115 x 30-55 mm, elliptic; petiole winged, wings obovate. Flowers bisexual, 1-few, in axillary cymes. Petals fleshy and glandular. Stamens 20-24. Fruit globose, 7 x 7.5 cm, flattened at the base and apex; rind when ripe, glandular and rough. Axis hollow. Pulp bitter-acidic.