| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Carya glabra | Shoot | 144.0 | 24200.0 | 2.3 | * |
| Carya ovata | Shoot | 125.0 | 21600.0 | 2.0 | * |
| Chondrus crispus | Plant | -- | 19600.0 | 4.8 | Pedersen, M. 1987. Nutritional Herbology. Pederson Publishing. Bountiful, Utah. 377 pp. |
| Portulaca oleracea | Herb | 670.0 | 18700.0 | 1.4 | * |
| Phaseolus vulgaris | Fruit | 210.0 | 18000.0 | 7.3 | * |
| Papaver somniferum | Seed | 3148.0 | 15600.0 | 5.0 | * |
| Vigna unguiculata | Seed | 389.0 | 14400.0 | 4.5 | * |
| Avena sativa | Plant | 2640.0 | 12000.0 | 2.5 | * |
| Spinacia oleracea | Plant | 420.0 | 11000.0 | 2.2 | * |
| Tephrosia purpurea | Leaf | -- | 10300.0 | 2.4 | * |
| Trichosanthes anguina | Fruit | 530.0 | 9815.0 | 3.6 | * |
| Eriodictyon californicum | Leaf | 2156.0 | 9800.0 | 2.2 | * |
| Curcuma longa | Plant | 3038.0 | 9800.0 | 1.8 | * |
| Glycyrrhiza glabra | Root | 1515.0 | 9650.0 | 3.8 | * |
| Prunus serotina | Leaf | 435.0 | 9600.0 | 2.1 | * |
| Rhus copallina | Leaf | 405.0 | 9600.0 | 2.1 | * |
| Nyssa sylvatica | Leaf | 500.0 | 9100.0 | 1.9 | * |
| Armoracia rusticana | Root | 1624.0 | 9020.0 | 3.4 | * |
| Rhizophora mangle | Leaf | -- | 8800.0 | 1.8 | * |
| Symphoricarpos orbiculatus | Stem | 380.0 | 8800.0 | 1.7 | * |