It is the fruit of the crabapple tree, when ripe, its skin is bright red and its flesh is yellow-white. From the shape, it looks like a small apple. It usually ripens between August and September. It can be eaten fresh directly, not only tastes sweet and sour, but also has high nutritional value. In addition, it is mostly distributed in North China, of which Huailai County in Hebei Province is a relatively well-known origin.
