| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Piper nigrum | Seed | -- | 23.0 | -1.2 | * |
| Prunus serotina | Leaf | -- | 1.72 | -1.0 | * |
| Prunus serotina | Plant | -- | -- | Abstract (See species file) | |
| Pueraria montana | Root | -- | -- | * | |
| Pueraria pseudohirsuta | Root | -- | -- | * | |
| Solanum tuberosum | Plant | -- | -- | * | |
| Spinacia oleracea | Leaf | -- | -- | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. | |
| Trigonella foenum-graecum | Plant | -- | -- | * | |
| Urtica dioica | Leaf | -- | 20.0 | 1.0 | * |
| Urtica dioica | Plant | -- | -- | * | |
| Viscum album | Plant | -- | -- | * |