Japanese Knotweed Root Slices Hu Zhang 500g Dried Polygonum cuspidatum Traditional Chinese Herb for Decoction

Japanese Knotweed Root Slices, known in TCM as Hu Zhang (虎杖), from Polygonum cuspidatum, are dried root slices of this traditional Chinese herb. In TCM theory, Hu Zhang is considered bitter in flavor and slightly cold in nature, traditionally associated with the liver, gallbladder, and lung channels. Traditionally used in decoctions and herbal formulas, these slices are typically simmered in water or added to herbal blends. Store sealed in a cool dry place and use according to guidance from a qualified practitioner.

Key Selling Points

• Dried Japanese Knotweed root slices known in TCM as Hu Zhang
• Botanical source Polygonum cuspidatum with sliced root form
• Traditionally associated with bitter flavor and slightly cold nature in TCM
• Sun-dried and air-dried processing suitable for decoction pieces
• Commonly simmered in herbal decoctions or combined with other TCM herbs

Quality & Sensory

The slices typically show a yellowish to yellow-brown cut surface with a firm, woody texture. The aroma is typically mild and earthy, and decocted liquid typically carries a bitter, slightly astringent taste.

Technical Specifications

Usage Scenarios

• Simmered in water as a traditional herbal decoction
• Added to multi-herb TCM formulas prepared by decoction
• Used in seasonal herbal teas prepared with other botanicals
• Incorporated into culinary herbal broths following traditional recipes

Traditional Uses

In traditional Chinese practice, Hu Zhang root slices are traditionally simmered in water decoctions, often combined with other herbs according to classical formulas. Traditionally associated with clearing damp-heat and promoting blood circulation in TCM theory, the root has also appeared in folk herbal preparations and seasonal wellness drinks. It is commonly paired with herbs such as Yin Chen Hao in traditional decoction blends.

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