Citrus originated from Southeast Asia . Around the year 1000, the Arabs introduced citrus into Spain and Sicily , both lemons and the Seville orange . Over time other varieties were developed : lime, limette, mandarin, clementine, soft orange, grapefruit and later hybrids such as tangerines and kumquat.
France also produces clementines, but only in Corsica.
The trees are evergreen and can grow between 3 to 15 metres in height, depending on the variety.
Citrus fruits are high in vitamin C.