Citrus
kumquat, and shaddock, widely cultivated for fruit or grown as an ornamental. It is believed that citrus plants are native to subtropical and tropical [...] important commercial varieties include oranges, grapefruit, lemons, and tangerines and to a lesser extent, tangelos. Oranges account for the greatest value [...] tropical regions of Asia and the Malay Archipelago. Some citrus species have been present in the Mediterranean basin for centuries. Since citrus originates from