On this Orange for rabbit the language links are at the top of the page across from the article title. All citrus trees belong to the single genus Citrus and remain almost entirely interfertile.

Different names have been given to the many varieties of the species. Italy for its peel, producing a primary essence for perfumes, also used to flavor Earl Grey tea. It is a hybrid of bitter orange x lemon. Like the sweet orange, it is a pomelo x mandarin hybrid, but arose from a distinct hybridization event. It often serves as a rootstock for sweet orange trees and other Citrus cultivars. An enormous number of cultivars have, like the sweet orange, a mix of pomelo and mandarin ancestry.