The fruit of Juncus efflorescence will change from green to red when it matures, and then there is a layer of epidermis like veins outside, which is not very thick if it is thin or not. After peeling off that layer of epidermis, the fruit is very shiny and looks like a yellow tomato.

Girls' fruit, also known as Mushroom Mushroom and scientific name Physalis alkekengi, is widely distributed in northeast China. There is a lantern-like foreskin outside, and the fruit is yellow and red with many seeds. Chewing in the mouth is mellow and sweet. It is rich in various elements and nutrients, and can be eaten directly, or made into jam, canned food, etc., and it has many benefits to the body. Because of its beautiful coat and fresh inner skin, it is similar to a shy girl wearing a cicada-thin "dress" dancing in a gorgeous stage, so it is named Gu Nianguo.