Young Blonde Girl With The Orange Fruit

Blood oranges
Blood oranges, which are very widely grown in Spain and Italy (as "sangüina" or "sanguigna", respectively) are characterized by dark red pigmentation. They are considered, in general, the most delicious juice orange.
Blood oranges are a natural variety of C. sinensis derived from abnormal pigmentation of the fruit that gives its pulp a streaked red colour. The juice produced from such oranges is often dark burgundy, hence reminiscent of blood. Original blood oranges were first discovered and cultivated in the 15th century in Sicily; since then, however, their cultivation spread worldwide, and most blood oranges today are hybrids.
The fruit has found a niche as an interesting ingredient variation on traditional Seville marmalade, with its striking red streaks and distinct flavour. The scarlet navel is a variety with the same dual-fruit mutation as the navel orange.