Also known as Castanea henryi, Castanea henryi and Castanea henryi, they are mainly distributed in the Yangtze River valley and all parts of the south of the Yangtze River, belonging to the same family as chestnuts. The fruit is spherical with thorns, and there is generally only one cone-shaped nut in the shell, which tastes like chestnuts.

Every year, it ripens after 10 months, the shell cracks and the inner nuts fall off. Nut shells are thinner than chestnuts and taste the same as chestnuts. Nuts contain sugar, starch, protein, fat and various vitamins and minerals.

The expanded data are nuts, which are rich in nutrition, with starch content of 56%-72%, protein content of 5.7%- 10.7%, fat content of 2%-7.4% and more vitamins.

Its wood is hard, dense, water-resistant and moisture-proof, and can be used in shipbuilding, floors, bridge slabs, sleepers, furniture and so on. Its slender wood fiber is also a good raw material for papermaking. Branches and leaves, bark and involucre contain more tannic acid, which can extract industrial raw materials.

Although the value of nutrition and health care is high, it also needs to be eaten properly. It is best to eat it as a snack between meals, or as a meal, rather than eating it in large quantities after meals. Containing more starch, it is easy to consume too many calories after meals, which is not conducive to maintaining weight.

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