| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Cocos nucifera | Seed | 1700.0 | 3205.0 | -1.5 | USDA's Ag Handbook 8 and sequelae) |
| Cocos nucifera | Endosperm | -- | -- | Jim Duke's personal files. | |
| Cocos nucifera | Leaf | -- | -- | Jim Duke's personal files. | |
| Colocasia esculenta | Root | 730.0 | 2485.0 | -0.5 | * |
| Corchorus olitorius | Leaf | 2560.0 | 20840.0 | 1.9 | * |
| Coriandrum sativum | Fruit | -- | -- | * | |
| Crocus sativus | Bulb | -- | -- | * | |
| Cryptotaenia japonica | Shoot | -- | -- | * | |
| Cryptotaenia japonica | Root | -- | -- | * | |
| Cucumis sativus | Fruit | 180.0 | 4557.0 | 0.3 | * |
| Cucurbita pepo | Seed | 11580.0 | 24420.0 | 3.0 | * |
| Cucurbita foetidissima | Seed | 10130.0 | 17100.0 | 1.5 | * |
| Cucurbita pepo | Fruit | 280.0 | 3333.0 | -0.1 | USDA's Ag Handbook 8 and sequelae) |
| Cucurbita spp | Fruit | 620.0 | 9810.0 | 2.4 | * |
| Daucus carota | Root | 590.0 | 4830.0 | 0.7 | * |
| Dioscorea pentaphylla | Root | 550.0 | 2965.0 | -0.2 | * |
| Dryopteris marginalis | Plant | -- | -- | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. | |
| Fagopyrum esculentum | Seed | -- | 6880.0 | -0.7 | * |
| Ficus carica | Fruit | 450.0 | 2154.0 | -0.6 | USDA's Ag Handbook 8 and sequelae) |
| Foeniculum vulgare | Fruit | 7890.0 | 8655.0 | 1.9 | * |