Plant | Low PPM | High PPM | StdDev | *Reference | |
---|---|---|---|---|---|
Petasites hybridus | Leaf | -- | 1500.0 | Wichtl, M. 1984. Teedrogen. Ein Handbuch fur Apotheker und Arzte. Wissenschaftliche Verlagsgesellscharft. mbH Stuttgart. 393 pp. | |
Petasites japonicus | Plant | -- | 160.0 | * | |
Petasites hybridus | Rhizome | -- | -- | * | |
Petasites hybridus | Root | -- | -- | * | |
Petasites japonicus | Flower | -- | -- | * | |
Petasites japonicus | Rhizome | -- | -- | * |