血橙(blood orange) 是一个混种的植物，第一次出现在1850的欧洲，新鲜的血橙是红或橙色，有明亮的红色条纹，并且香甜多汁有一种芬芳的香气，有几个品种是略呈椭圆形的，血橙大都无核，主要被种植在西班牙、意大利和北美。
Blood orange (blood orange) is a hybrid plant, first time in Europe in 1850, fresh blood orange is red or orange, with bright red stripes, and sweet and juicy with a fragrant aroma, some blood oranges are slightly oval, blood orange mostly is seedless, mainly grown in Spain, Italy and North America.
The blood orange is a variety of orange (Citrus sinensis) with crimson, blood-colored flesh. The fruit is smaller than an average orange; its skin is usually pitted, but can be smooth. The distinctive dark flesh color is due to the presence of anthocyanins, a family of pigments common to many flowers and fruit, but uncommon in citrus fruits. Sometimes there is dark coloring on the exterior of the rind as well, depending on the variety of blood orange. The degree of coloration depends on light, temperature and variety.
The blood orange is often described as a hybrid between the pomelo and the tangerine, but it is actually just a mutation of a sweet orange.
The three most common types of blood oranges are: the Tarocco (native to Italy), the Sanguinello (native to Spain), and the Moro, the newest variety of the three.
Blood orange juice is tart. It can be used as a cocktail ingredient. The oranges can also be used to create marmalade, and the zest can be used for baking. A popular Sicilian winter salad is made with sliced Tarocco oranges, sliced bulb fennel, parsley and olive oil. The oranges have also been used to create gelato, sorbet and Italian soda. Blood oranges are also popular in vinaigrette-style dressings, and are sometimes used to flavour niche-market beer.