This product is the dried root of the Polygonum multiflorum plant, commonly known as He Shou Wu. It is widely used in traditional Chinese medicine for its health benefits and therapeutic properties.
(1) **Origin**: The main production areas include Henan, Hubei, Guangxi, Guizhou, Yunnan, Sichuan, and Jiangsu provinces. These regions provide the ideal climate and soil conditions for the growth of high-quality roots.
(2) **Processing at the Place of Origin**: The roots are typically harvested during the fall and winter seasons when the above-ground parts of the plant have withered. After excavation, the roots are trimmed at both ends, thoroughly washed, cut into large pieces, and then dried under appropriate conditions to preserve their medicinal properties.
(3) **Characteristics**: The roots appear as irregular lumps or spindle-shaped masses, measuring 6 to 15 cm in length and 4 to 12 cm in diameter. Their surface is reddish-brown, often shriveled with shallow grooves, long lenticels, and fine root remnants. The texture is firm, heavy, and difficult to break. When cut open, the cross-section shows a light yellow-brown or reddish-brown color, with a powdery texture. There are 4 to 11 circular vascular bundles arranged in a ring near the outer layer, creating a distinctive brocade-like pattern. The central wood portion is usually larger, and some roots may exhibit a "wooden heart" appearance. The aroma is faint, while the taste is bitter, sweet, and slightly astringent.
When selecting this product, look for large, solid, and heavy roots with a reddish-brown color and a clear "cloud-like" pattern on the cross-section. Roots with a pinkish base are considered higher quality. This herbal material is valued not only for its appearance but also for its potent medicinal effects.
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