Orange—whole, halved, and peeled segment. The orange, also called sweet orange to distinguish it from the bitter orange (Citrus × aurantium), is the fruit of a tree in the family Rutaceae.Botanically, this is the hybrid Citrus × sinensis, between the pomelo (Citrus maxima) and the mandarin orange (Citrus reticulata).The chloroplast genome, and therefore the maternal line, is that of pomelo. More @Wikipedia
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