| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Phaseolus vulgaris | Fruit | 210.0 | 18000.0 | 7.3 | * |
| Papaver somniferum | Seed | 3148.0 | 15600.0 | 5.0 | * |
| Chondrus crispus | Plant | -- | 19600.0 | 4.8 | Pedersen, M. 1987. Nutritional Herbology. Pederson Publishing. Bountiful, Utah. 377 pp. |
| Vigna unguiculata | Seed | 389.0 | 14400.0 | 4.5 | * |
| Glycyrrhiza glabra | Root | 1515.0 | 9650.0 | 3.8 | * |
| Trichosanthes anguina | Fruit | 530.0 | 9815.0 | 3.6 | * |
| Armoracia rusticana | Root | 1624.0 | 9020.0 | 3.4 | * |
| Inula helenium | Root | 1650.0 | 7500.0 | 2.6 | * |
| Salix alba | Bark | 941.0 | 5600.0 | 2.6 | * |
| Drynaria fortunei | Rhizome | -- | 4140.0 | 2.6 | * |
| Scutellaria baicalensis | Root | 7170.0 | 7220.0 | 2.5 | * |
| Avena sativa | Plant | 2640.0 | 12000.0 | 2.5 | * |
| Tephrosia purpurea | Leaf | -- | 10300.0 | 2.4 | * |
| Celosia cristata | Flower | -- | 6080.0 | 2.4 | * |
| Carya glabra | Shoot | 144.0 | 24200.0 | 2.3 | * |
| Cucumis sativus | Fruit | 101.0 | 7000.0 | 2.3 | * |
| Cucurbita pepo | Seed | 5140.0 | 8500.0 | 2.2 | * |
| Eriodictyon californicum | Leaf | 2156.0 | 9800.0 | 2.2 | * |
| Solanum tuberosum | Tuber | 190.0 | 4250.0 | 2.2 | * |
| Spinacia oleracea | Plant | 420.0 | 11000.0 | 2.2 | * |