Common Knotgrass (Bianxu)
|Pharmaceutical Name:||Herba Polygoni Avicularis|
|Botanical Name:||Polygonum aviculare L.|
|Source of Earliest Record:||Shennong Bencao Jing|
|art Used & Method for Pharmaceutical Preparations:||The aerial parts of the plant are gathered in summer and dried in the sun.|
|Properties and Taste:||Bitter and slightly cold|
|Functions:||To promote water metabolism and regulate abnormal urination
To expel parasites and stop itching
|Indications and Combinations:||1. Damp-heat in the urinary bladder manifested as scanty urine with blood, painful urination, urgency of micturition and frequent urination.
*Use with Pink (Qumai), Clematis stem (Mutong) and Talc (Huashi) in the formula Bazhen San.
2. Eczema and trichomonas vaginalis.
*The decoction is used externally for washing.