Citrus × aurantium, commonly known as bitter orange, sour orange, Seville orange, bigarade orange, or marmalade orange, is a hybrid citrus species that includes both the tree and its fruit. Native to Southeast Asia, it has been widely disseminated by humans across the globe. This hybrid originated from a cross between Citrus maxima (pomelo) and Citrus reticulata (wild mandarin orange). Bitter orange is valued for its essential oils, which are used in food, beverages, and pharmaceuticals. The Seville variety, in particular, is highly regarded in the United Kingdom for making traditional orange marmalade.
| Serial No. | Variety | Compound | Details |
|---|