e Clementine is a citrus fruit, belonging to the mandarin group, which, among others includes the typical Mediterranean mandarin (Citrus reticulata Blanco), as well as the Satsuma or Japanese mandarins. It is also commonly known with the name of mandarin orange, probably due to the fact that it is deemed to be a hybrid between a mandarin and an orange.

With the term navel orange it is indicated generically a variety of orange that has a typical twin fruit (said, precisely, navel) inside the peel, located at the opposite pole with respect to the petiole. The varieties of Citrus sinensis containing navels are Washington Navel, Navelina, Thompson, Navelate, and Golden Buckeye.

The lemons are the fruit of the lemon tree (Citrus limon), a plant of the Rutaceae family. Allied of the immune system, they facilitate digestion and help the skin to favour wellbeing and brightness.