Orange
about 25% pomelo and some 75% mandarin. The hybrid however is not a basic backcrossed BC1 hybrid, but the orange is actually hybridized over multiple generations [...] the Citrus X sinensis is regarded as a sweet orange, while the fruit of the Citrus X aurantium is recognized as a bitter orange. [...] navel oranges, blood/pigmented oranges and acid less oranges. The orange is a hybrid and derives from pomelo ( Citrus maxima ) and mandarin ( Citrus reticulata