Orange is a shrub or small tree species. A dicotyledon of Citrus family Rutaceae There are hundreds of species. Growth around the world Usually the essential oils in the leaves, flowers and fruits, and fruity. If you bring up the sun shines. Will see little point to say which of these points is the oil itself. Many species eat oranges The result is sour or sweet Usually with potassium, calcium, potassium, vitamin A and vitamin C very special.