| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Sophora angustifolia | Root | -- | -- | * | |
| Sarracenia purpurea | Shoot | -- | -- | * | |
| Vitis vinifera | Seed | -- | -- | * | |
| Annona muricata | Plant | -- | -- | * | |
| Hylocereus undatus | Plant | -- | -- | * | |
| Corylus avellana | Seed | -- | -- | * | |
| Artemisia herba-alba | Plant | -- | -- | * | |
| Anastatica hierochuntica | Plant | -- | -- | * | |
| Sambucus nigra | Flower | -- | -- | * | |
| Cucumis melo | Seed | -- | -- | * | |
| Ophiopogon japonicus | Tuber | -- | -- | * | |
| Dipteryx odorata | Seed | -- | -- | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses | |
| Ginkgo biloba | Pollen Or Spore | -- | -- | * | |
| Petasites hybridus | Root | -- | -- | * | |
| Teucrium scordium | Plant | -- | -- | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. | |
| Avena sativa | Seed | -- | -- | * | |
| Sinomenium acutum | Rhizome | -- | -- | * | |
| Foeniculum vulgare | Seed Essent. Oil | -- | -- | Jim Duke's personal files. | |
| Sinomenium acutum | Stem | -- | -- | * | |
| Anethum graveolens | Seed Essent. Oil | -- | -- | * |