Bian Xu (Polygonum aviculare) — Dried Food Herb, Traditional Chinese Herbal Tea Ingredient

Bian Xu (Polygonum aviculare), also known as Bian Xu Cao or common knotgrass, is the dried aerial part of a traditional food herb known in Traditional Chinese Medicine (TCM) as Biān Xù (萹蓄). For centuries it has been prized as a gentle, clearing herb used in decoctions and daily teas to support the body's natural fluid balance. Its nature is bitter and slightly cold, making it a mild yet effective herb traditionally associated with clearing damp-heat and supporting urinary wellness.

Key Selling Points

• Traditional food herb (药食同源) ingredient
• Dried Bian Xu aerial parts, new-crop quality
• Polygonum aviculare, bitter and slightly cold nature
• Suitable for herbal teas and decoctions
• 500g value pack, direct from source

Quality & Sensory

Each batch is carefully harvested and dried to preserve its natural green color, fine leafy texture, and mild grassy aroma. When decocted or brewed, it yields a light, slightly bitter infusion with a clean, refreshing finish that blends well with other herbs.

Technical Specifications

Usage Scenarios

• Herbal tea blends
• Traditional decoctions
• Seasonal wellness teas
• Daily herbal infusion
• Soup and congee ingredient

Traditional Uses

In folk herbal practice, Bian Xu is decocted alone or with other herbs into daily teas and gentle tonics, often paired with ingredients like plantain herb, dandelion, or chrysanthemum. It is traditionally used in summer and damp seasons to support the body's natural clearing and fluid balance. As a tea, it is brewed fresh or dried for a light, slightly bitter infusion.

FAQ Q&A