💊 Chemical information

Knotweed; Nat’ rdesna ptačího; Pihatatar; Polygoni avicularis herba; Renouée des oiseaux; Takažoliu gelknöterichkraut; Ziele rdestu ptasiego.


In Chin. and Eur..

Ph. Eur. 6.2

(Knotgrass; Polygoni Avicularis Herba). It consists of the whole or cut, dried aerial parts of Polygonum aviculare. It contains not less than 0.3% of flavonoids, expressed as hyperoside (C 21 H 20 O 12 = 464.4) calculated with reference to the dried drug. Protect from light.

💊 Profile

Knotgrass, Polygonum aviculare (P. heterophyllum) (Polygonaceae), is included in herbal preparations for mild catarrh and associated upper respiratory-tract disorders.


Knotgrass has been used in homoeopathic medicines under the following names: Polygonum aviculare.

💊 Preparations

Proprietary Preparations

Multi-ingredient: Cz.: Pulmoran; Species Urologicae Planta; Pol.: Cholesol; Reumosol.
Published May 08, 2019.