2, red girl, also known as the lantern fruit, small sour berries, the first bubble, the lantern grass, ghost lanterns and so on. Fruit is a small round fruit with a lantern-shaped pod, which is a little bigger than the thumb and contains many small seeds. It tastes sour when it is immature, yellow-green when it is mature, and purple when it is fully mature. It is very sweet and can be used not only for fresh food, but also for baking fruit cakes, making jam, canned food, fruit juice and other foods. Because the fruit is pure in sour taste, the fully mature fruit is sweet and sour, delicious and unique in appetizing, so it is very popular with consumers.