| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Arctostaphylos uva-ursi | Leaf | -- | 13000.0 | 1.7 | * |
| Hypericum perforatum | Plant | 3500.0 | 20000.0 | 1.4 | * |
| Hypericum perforatum | Flower | -- | 6570.0 | 1.4 | * |
| Hypericum perforatum | Shoot | 5000.0 | 40000.0 | 1.0 | * |
| Crataegus monogyna | Leaf | -- | 2000.0 | -0.4 | * |
| Agrimonia eupatoria | Flower | -- | 3700.0 | -0.4 | * |
| Rumex acetosa | Leaf | -- | 500.0 | -0.6 | * |
| Crataegus laevigata | Plant | -- | 10000.0 | -0.7 | * |
| Crataegus monogyna | Plant | -- | 10000.0 | -0.7 | * |
| Rosa canina | Leaf | -- | 30.0 | -0.7 | * |
| Tussilago farfara | Flower | -- | 2800.0 | -1.0 | * |
| Houttuynia cordata | Shoot | -- | 2900.0 | -1.0 | * |
| Medicago sativa | Seed | -- | -- | * | |
| Crataegus laevigata | Branches | -- | -- | * | |
| Crataegus laevigata | Flower | -- | -- | * | |
| Crataegus laevigata | Shoot | -- | -- | * | |
| Crataegus laevigata | Leaf | -- | -- | * | |
| Crataegus laevigata | Bark | -- | -- | * | |
| Sarracenia flava | Leaf | -- | -- | * | |
| Hemidesmus indicus | Flower | -- | -- | * |