| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Phoradendron serotinum | Plant | -- | -- | * | |
| Pisum sativum | Root | -- | -- | * | |
| Pisum sativum | Leaf | -- | -- | * | |
| Prosopis glandulosa | Leaf | -- | -- | * | |
| Prosopis glandulosa | Plant | -- | -- | * | |
| Prunus domestica | Fruit | -- | -- | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. | |
| Silybum marianum | Seed | -- | -- | * | |
| Silybum marianum | Plant | -- | -- | * | |
| Solanum tuberosum | Fruit | -- | -- | * | |
| Solanum melongena | Fruit | -- | -- | * | |
| Theobroma cacao | Plant | -- | -- | * | |
| Theobroma cacao | Seed | -- | -- | * | |
| Viscum album | Plant | -- | -- | * |