How to distinguish the authenticity of Polygonum multiflorum Thunb.

1. The real Polygonum multiflorum Thunb. The surface is reddish-brown or reddish-brown, the shrinkage is uneven, the groove is shallow, the cross section is light yellow-brown or reddish-brown, and the vascular bundles are irregular, forming brocade, commonly known as "tendons". Polygonum multiflorum Thunb. The surface is dark and smooth, the cross section is white, there is no reinforcement in the middle, and the texture is crisp.

2, rattan stem: false Polygonum multiflorum Thunb. It is usually planted later, but the real Polygonum multiflorum Thunb. It is inserted in the false Polygonum multiflorum Thunb. And if you pull hard, it will be pulled out.

3. Taste: The real Polygonum multiflorum Thunb is bitter, while the fake Polygonum multiflorum Thunb is light.

Polygonum multiflorum Thunb is produced in southwestern Shaanxi, southern Gansu, eastern China, central China, southern China, Sichuan, Yunnan and Guizhou. Its tuberous root can soothe the nerves, nourish blood, activate collaterals, detoxify (stop malaria) and eliminate carbuncle when used as medicine; Radix Polygoni Multiflori Preparata can benefit essence and blood, blacken hair and beard, strengthen bones and muscles, and nourish liver and kidney. It is a common and precious Chinese herbal medicine.

Polygonum multiflorum Thunb:

Extended data:

Due to different processing methods, Polygonum multiflorum Thunb can be divided into raw Polygonum multiflorum Thunb and processed Polygonum multiflorum Thunb. Pharmacopoeia 1985 clearly distinguishes raw Polygonum multiflorum Thunb and prepared Polygonum multiflorum Thunb as two drugs: Polygonum multiflorum Thunb in daily life actually refers to "prepared Polygonum multiflorum Thunb" and Polygonum multiflorum Thunb in prescription refers to "raw Polygonum multiflorum Thunb".

The effects of raw Polygonum multiflorum Thunb and prepared Polygonum multiflorum Thunb are different. Raw Polygonum multiflorum Thunb, which is only cut cleanly, tastes bitter, astringent and slightly warm, and belongs to liver, heart and kidney meridians. It has the functions of detoxifying, eliminating carbuncle, stopping malaria, moistening intestines and relaxing bowels, and the dosage is generally 6 ~ 12g.

Radix Polygoni Multiflori Preparata is prepared by steaming and drying auxiliary materials, and has the functions of nourishing liver and kidney, nourishing essence and blood, strengthening tendons and bones, and blackening hair. The dosage in Pharmacopoeia is generally 6~ 12g.

Baidu Encyclopedia _ Polygonum multiflorum Thunb

People's Network _ The efficacy of Polygonum multiflorum Thunb. is only healthy if it is eaten correctly.