|Species:||C. × aurantium|
|Citrus × aurantium
The name "bitter orange", also known as Seville orange, sour orange, bigarade orange, and marmalade orange, refers to a citrus tree (Citrus × aurantium) and its fruit. It is hybrid between Pomelo and Mandarin orange. Many varieties of bitter orange are used for their essential oil, which is used in perfume, as a flavoring and as a solvent. The Seville orange variety is used in the production of marmalade.
Bitter orange is also employed in herbal medicine as a stimulant and appetite suppressant. The active ingredient, synephrine, has been linked to a number of deaths, and consumer groups advocate avoiding medicinal use of the fruit.