Glabrous tree to c. 10 m high with rather rounded crown and angular shoots. Spines confined to trunk, main branches and strong young vegetative shoots. Lvs strongly orange-scented. Petiole 1-2.5 cm long, narrowly winged, articulate at apex. Lamina 7-15 × 3.5-7 cm, elliptic or elliptic-ovate, entire or slightly crenulate; apex usually short-acuminate. Fls 1-few in the axils, fragrant. Calyx 3-4 mm long; lobes broad-ovate. Petals c. 2.3 cm long, elliptic, white. Stamens > 20. Fr. 5-7 cm diam., ± globose, 10-13-celled; exocarp (peel) bright orange, dotted with oil glands, c. 1 cm thick; pulp very sweet, orange; core of axis solid.