The hickory (Carya cathayensis Sarg.), also known as walnut rowan, walnut rowan. Is a deciduous tree, belongs to the walnut family hickory genus, up to 10-20 meters high, 30-60 cm diameter at breast height; bark smooth, gray-white, smooth; branchlets thin, new branches densely covered with peltate bearing orange-yellow glands, and later the glands are gradually sparse, 1 year old branches purple-gray, the upper end of the often sparsely pubescent, lenticels rounded, sparse.

The fruit of the walnut has been recognized by consumers for its high nutritional value and unique taste and flavor, and has gradually become a popular high-grade nut. China is one of the places of origin, suitable for the foothills of open forests or humus-rich valleys.

Growing environment

Born in the foothills of open forests or humus-rich valleys, up to 400-1200 meters above sea level. [1] The hickory is mainly produced in the Tianmu Mountain area, Changbei District and Henglu Township in the junction of Zhejiang and Anhui.

The common walnut, also known as walnut, qiangtao, for the walnut family plants. With walnuts, cashews, hazelnuts and known as the world-famous "four big dry fruit". Walnut kernel is rich in nutrients, per 100 grams of protein 15-20 grams, more fat, carbohydrates 10 grams; and contains essential calcium, phosphorus, iron and other trace elements and minerals, as well as carotene, riboflavin and other vitamins. Beneficial to the human body, can be strong brain. It is one of the popular nut foods. Known as "long live son", "longevity fruit".