The orange (Citrus sinensis) is an evergreen plant belonging to the genus Citrus (the same as well-known as cedar trees, bitter orange, lemon, mandarin, bitter orange, grapefruit and so on.) And to the family Rutaceae. The orange is native to China and Southeast Asia. Orange is an ancient hybrid of pomelo and tangerine, but for hundreds of years is now a separate species that can be propagated either by cuttings or through grafting. All over the world are cultivated hundreds of varieties. The orange trees can reach a height of about 12 meters; characterize fleshy leaves, glossy, dark green color and elongated shape. The flowers, very beautiful and fragrant, are white, and have five petals.