Citrus macrophylla, also known as alemow, is a citrus tree and fruit, belonging to the papeda subgroup of citrus

Citrus

Citrus is a common term and genus of flowering plants in the rue family, Rutaceae. Citrus is believed to have originated in the part of Southeast Asia bordered by Northeastern India, Myanmar and the Yunnan province of China...

 plants. The trees are short in stature, more tropical in nature than most citrus, and are very spiny.

Distribution

Alemow is rare and poorly studied. A likely hybrid between the pomelo

Pomelo

The pomelo is a citrus fruit native to Southeast Asia. It is usually pale green to yellow when ripe, with sweet white flesh and very thick albedo . It is the largest citrus fruit, 15–25 cm in diameter, and usually weighing 1–2 kg...

 and the Citrus celebica, the large fruits are considered inedible by local populations, though the plants are infrequently cultivated for medicinal and other uses. It has been tried in California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

as a possible rootstock for other citrus.