| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Morinda sp | Root | -- | 15.0 | -0.4 | * |
| Rumex acetosa | Leaf | 2.0 | 20.0 | -0.4 | * |
| Cnidium officinale | Rhizome | -- | 16.0 | -0.4 | * |
| Notopterygium incisum | Rhizome | -- | 16.0 | -0.4 | * |
| Sinomenium acutum | Rhizome | -- | 15.0 | -0.4 | * |
| Equisetum hyemale | Plant | -- | 10.0 | -0.4 | * |
| Arisaema consanguineum | Rhizome | -- | 14.0 | -0.4 | * |
| Dioscorea bulbifera | Rhizome | -- | 12.0 | -0.4 | * |
| Gastrodia elata | Rhizome | -- | 12.0 | -0.4 | * |
| Magnolia denudata | Flower | -- | 25.0 | -0.4 | * |
| Magnolia fargesii | Flower | -- | 25.0 | -0.4 | * |
| Prunella vulgaris | Flower | -- | 25.0 | -0.4 | Chen, H.C. and Lin, S.M. 1988. Determination of Mineral Elements in Certain Crude Drugs (Part 1), Kaohsiung J. Med. Sci., 4: 259-272. |
| Magnolia kobus | Flower | -- | 25.0 | -0.4 | * |
| Tussilago farfara | Flower | -- | 25.0 | -0.4 | * |
| Scutellaria lateriflora | Plant | 1.2 | 8.6 | -0.4 | * |
| Pistacia vera | Seed | 3.0 | 30.0 | -0.4 | * |
| Hordeum vulgare | Seed | 20.0 | 30.0 | -0.4 | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. |
| Juglans regia | Seed | 25.0 | 30.0 | -0.4 | USDA's Ag Handbook 8 and sequelae) |
| Persea americana | Fruit | 4.0 | 16.0 | -0.4 | * |
| Artocarpus heterophyllus | Fruit | 4.0 | 16.0 | -0.4 | * |