| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Camellia sinensis | Leaf | 5417.0 | 44000.0 | * | |
| Chimaphila umbellata | Plant | -- | -- | Leung, A.Y., Encyclopedia of Common Natural Ingredients Used in Food, Drugs, and Cosmetics, John Wiley & Sons, New York, 1980. | |
| Sorbus aucubaria | Fruit | -- | -- | * |