| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Juglans nigra | Seed Oil | -- | -- | * | |
| Trifolium pratense | Pollen Or Spore | -- | -- | * | |
| Fagopyrum esculentum | Pollen Or Spore | -- | -- | * | |
| Sambucus nigra | Flower | -- | -- | * | |
| Petasites hybridus | Root | -- | -- | * | |
| Taraxacum officinale | Pollen Or Spore | -- | -- | * |