Deep Red Citrus Fruit

Blood oranges and red grapefuit are well known, but did you know the lime also has a red doppelganger? The blood lime - also known as red centre lime, Australian lime or citron rouge. The blood lime is a cross between the elongated Australian finger lime and the Burmese Rangpur lime (the Rangpur lime is thought to be a hybrid itself, lemon crossed with mandarin).