Straggly tree to 4 m high, often coppicing and suckering; spines to 12 mm long, solitary; twigs terete, fawn-pubescent when young. Leaves: petiole c. 3–15 mm long, often articulated with lamina; lamina oblanceolate to sublinear, 30–45 (–70) mm long, 8–11 (–20) mm wide, acute to cuneate at base, sometimes distally crenulate, acute. Flowers usually solitary, rarely in fascicles of 3, 5-merous, bisexual or functionally male, ± subsessile. Calyx c. 2 mm long. Petals c. 8 mm long, pinkish white. Stamens 26–30, free. Ovary 8-or 9-locular. Fruit globose.