According to legend, in ancient China, there was a man named He Tianer who was still childless over half a year old. The couple are unhappy all day for this. One day, He Tianer was drunk and fell asleep in the field. In his sleep he saw a plant he had never seen before. It has thick tuberous roots, oval leaves and white inflorescences in the axils. A kind-hearted old man came to him and said, "Take the root and make sure you have a big fat son." Atianer woke up and saw that there was a plant like this growing around her, so she dug up the root, mashed it and took it with shochu.

Strangely enough, since He Tianer took this medicine, the chronic illness that had not been cured for many years quickly recovered, his white hair turned blue and his face was ruddy. A year later, his wife really gave birth to a son for him.

He Tian Liao named his son Yanshou and asked him to take this root tuber from childhood. After that, both father and son lived to the age of 160.

Later, Shouwu, Yanshou's son, also took this medicine and lived to 100 years old. To commemorate the discovery of his parents, Shouwu called this plant Polygonum multiflorum Thunb.

Legend is a legend after all, but there is no doubt that Polygonum multiflorum Thunb has medicinal value.

Polygonum multiflorum Thunb, also known as Polygonum multiflorum Thunb, Polygonum multiflorum Thunb and Goblin, belongs to Polygonaceae and is a perennial twining vine. Its tuberous roots are swollen, its epidermis is purple-black, and its cross section is purple-red. The basal part of the leaf has a leaf sheath that is common in Polygonaceae plants.

Polygonum multiflorum Thunb. is often wild on grassy slopes, roadsides and bushes, and is cultivated in Shanxi, Shaanxi, Gansu, Henan, Hubei, Hunan, Sichuan, Yunnan, Guizhou, Jiangsu, Zhejiang and Anhui. After 3 ~ 4 years of artificial cultivation of Polygonum multiflorum Thunb, root tuber can be excavated. In spring or autumn, clean the roots and cut off both ends. Large ones can be cut in half, or cut into thick pieces and dried in the sun, dried or boiled for medicinal use. Sometimes, the root tuber can be pulverized or brewed.

Traditional Chinese medicine believes that Polygonum multiflorum Thunb. tastes bitter, sweet and astringent, and its nature is slightly warm. It can be used for treating yin deficiency of liver and kidney, premature graying of hair, dizziness due to blood deficiency, and weakness of waist and knees. Its main chemical components are lecithin and anthraquinone derivatives, such as chrysophanol, emodin, rhein, emodin methyl ether, digitalis anthraquinone and edible rhein.

The vine of Polygonum multiflorum Thunb is called Polygonum multiflorum Thunb or Polygonum multiflorum Thunb, which is sweet in taste, flat in nature and sweet in heart. Liver meridian has the functions of nourishing heart and calming nerves, dredging collaterals and expelling wind, and can treat insomnia, hyperhidrosis, blood deficiency and limb pain. Scrubbing the decoction of Polygonum multiflorum Thunb can also treat skin sores and rashes.

Recently, it has been found that the tender leaves of Polygonum multiflorum can also be used as food. In spring, the tender leaves are collected, scalded with boiling water, and the taste is very unique after being fried. According to laboratory tests, every100g of tender leaves of Polygonum multiflorum Thunb contains 7.3 mg of carotene and 13 1 mg of vitamin C.