Stone yellow skin is also called swan egg, fern potato, phoenix egg, ground pearl, preserved fruit, sparrow egg, water betel nut, golden egg, wild egg and so on. There are many names, the scientific name is nephropteris, which is a very common wild plant in rural mountainous areas.
Many people have seen its stems and leaves on the ground. In the past, it was used as firewood in the countryside. However, few people know that this plant will bear fruit underground, because it looks like yellow skin, and most of it grows near rocks, so it is called yellow skin.
Strictly speaking, pelt is not the fruit of fern, but its rhizome. Because it is spherical, looks like the yellow skin of a fruit, and can be eaten raw directly, it is regarded as a wild fruit among the people.
Huangshi bark is also a valuable Chinese herbal medicine, which has the functions of clearing away heat and promoting diuresis, relieving stranguria and cough, reducing swelling and detoxifying, and has a good effect on persistent fever, metrorrhagia, leukorrhagia, hemorrhoids and diabetes insipidus. When it comes to growing in pieces, it is only a few tens of pounds when digging.
However, the price is still not cheap As a medicinal material, 30 yuan can be sold for about a catty, and some people go to the countryside to dig, which is also very popular in the market. At present, it is mainly used for making soup.
If you find it near the house in your hometown, don't dispose of it easily. Just keep it for great use, and occasionally dig to relieve appetite or make soup.
If you don't have it in your hometown, you can see it in the mountains and transplant it back. It is a very popular green plant in the city, and many people spend money to buy and plant it because it still has high ornamental value.