Small trees to ca. 6 m high, heavily armed with numerous axillary spines 5-27 mm long. Leaflets elliptic to oval, obtuse to retuse and abruptly acuminate apically, broadly cuneate basally, the margins crenulate and somewhat revolute, 43-115 mm long, 17-60 mm wide; petioles narrowly margined, but not winged, 5-7 mm long, ca. 1 mm wide, articulated with the leaflet. Flowers not seen in the Panamanian specimen. Fruits at maturity ovoid, mammillate apically, light yellow, 5-10 cm long, acid, the peel not easily separating from the segments.
Spinous shrub or tree, 3-6 m tall. Leaves 6.5-100 mm, elliptic to ovate, serrulate, acute to acuminate. Leaf perfectly jointed to the petiole. Petiole narrowly winged. Flowers bisexual or male. Petals white, tinged purple. Stamens 20-30; Fruit oblong or rounded mamillate, yellow when ripe; pulp abundant and strongly acid.
Leaflet ovate, 5–10 cm. long, 3–6 cm. broad, serrate; petiole margined but not winged, with a distinct articulation with the lamina.
Flowers solitary or clustered, axillary, 3.8–5 cm. in diameter; petals pink in bud, on opening white above and purplish below; stamens 20–40; ovary 8–10-locular.
Fruit oval with terminal nipple, 5–10 cm. long; peel rather thick and pale yellow, adherent; pulp sour.