Citrus macroptera is so-named because of the large “wings” (-ptera) on the petiole, which is as large as the blade of the leaf. The tree, which has thorns, can reach 5 m (16 ft) in height. Its fruit is about 6–7 cm (2+1⁄2–3 in) in diameter, has a fairly smooth, moderately thick rind, and is yellow when ripe. The pulp of the fruit is greenish-yellow and dry (does not produce much juice). The juice is very bitter, and somewhat sour.

In Bangladesh, especially Sylhet, the thick fleshy rind of Citrus macroptera is eaten as a vegetable, while the pulp is usually discarded because of its bitter-sour taste. The thick rind is cut into small pieces and cooked (either green or ripe) in beef, mutton, and fish curries, it is also used in Dal. The rind is often sun-dried for later cooking and consumption. The fruit is also pickled.

The oil of the annamensis cultivar is used in the perfume industry.