| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Cryptotaenia japonica | Root | -- | -- | * | |
| Cucumis sativus | Fruit | 40.0 | 1012.0 | 0.1 | * |
| Cucurbita spp | Fruit | 170.0 | 2690.0 | 2.1 | * |
| Cucurbita pepo | Seed | 5195.0 | 7885.0 | 0.9 | * |
| Cucurbita pepo | Fruit | 110.0 | 1310.0 | 0.4 | * |
| Cucurbita foetidissima | Seed | 2610.0 | 19000.0 | 3.8 | * |
| Daucus carota | Root | 70.0 | 575.0 | -0.9 | * |
| Dioscorea pentaphylla | Root | 180.0 | 970.0 | -0.2 | * |
| Fagopyrum esculentum | Seed | -- | -- | * | |
| Ficus carica | Fruit | 60.0 | 287.0 | -0.8 | USDA's Ag Handbook 8 and sequelae) |
| Foeniculum vulgare | Seed | 3010.0 | 3302.0 | -0.3 | USDA's Ag Handbook 8 and sequelae) |
| Foeniculum vulgare | Fruit | 3010.0 | 3302.0 | 2.9 | * |
| Fragaria spp | Fruit | 10.0 | 119.0 | -1.0 | USDA's Ag Handbook 8 and sequelae) |
| Ginkgo biloba | Seed | 550.0 | 1520.0 | -0.7 | USDA's Ag Handbook 8 and sequelae) |
| Glycine max | Shoot | -- | -- | * | |
| Glycine max | Seed | 4920.0 | 5380.0 | 0.3 | USDA's Ag Handbook 8 and sequelae) |
| Helianthus tuberosus | Tuber | -- | 858.0 | -0.9 | Izadoost, M. & Robinson, T., Synergism & antagonism in the pharmacology of alkaloidal plants, pp 137-58 in Craker, L. & Simon, J., eds., Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture & Pharmacology, v. 2, 1987, 255pp. |
| Helianthus annuus | Seed | 4940.0 | 20500.0 | 4.2 | * |
| Hordeum vulgare | Seed | 1000.0 | 4000.0 | -0.1 | Jim Duke's personal files.* |
| Ipomoea batatas | Root | 230.0 | 1510.0 | 0.7 | * |