| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Prunus persica | Bark | -- | -- | * | |
| Petroselinum crispum | Plant | -- | -- | * | |
| Angelica sinensis | Root | -- | -- | * | |
| Juglans nigra | Hull Husk | -- | -- | * | |
| Larrea tridentata | Plant | -- | -- | * | |
| Frangula purshiana | Bark | -- | -- | * | |
| Cimicifuga racemosa | Root | -- | -- | * | |
| Hibiscus sabdariffa | Flower | -- | -- | * | |
| Vaccinium macrocarpon | Fruit | -- | -- | * | |
| Juniperus communis | Fruit | -- | -- | * | |
| Rumex crispus | Root | -- | -- | * | |
| Cymbopogon citratus | Plant | -- | -- | Pedersen, M. 1987. Nutritional Herbology. Pederson Publishing. Bountiful, Utah. 377 pp. | |
| Chrysanthemum parthenium | Leaf | -- | -- | * | |
| Crataegus laevigata | Flower | -- | -- | * | |
| Gymnema sylvestre | Leaf | -- | -- | * | |
| Medicago sativa | Plant | -- | -- | * | |
| Amorphophallus konjac | Root | -- | -- | * | |
| Equisetum arvense | Plant | -- | -- | * | |
| Inula helenium | Plant | -- | -- | * | |
| Myrica cerifera | Bark | -- | -- | * |