| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Bupleurum chinense | Root | -- | 890000.0 | 0.8 | * |
| Byrsonima crassifolia | Fruit | 793000.0 | 832000.0 | 0.3 | * |
| Cajanus cajan | Seed | 99000.0 | 695000.0 | 1.8 | * |
| Cajanus cajan | Fruit | 644000.0 | 694000.0 | -0.3 | * |
| Calathea macrosepala | Flower | -- | 923000.0 | 0.7 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Calotropis sp. | Seed | -- | 74000.0 | -0.6 | * |
| Camellia sinensis | Leaf | 40000.0 | 120000.0 | -3.4 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Canarium indicum | Seed | -- | 37600.0 | -0.7 | * |
| Canavalia ensiformis | Seed | 107000.0 | 120000.0 | -0.4 | * |
| Canavalia ensiformis | Fruit | 785000.0 | 886000.0 | 0.5 | * |
| Canna indica | Root | -- | 668000.0 | -0.7 | * |
| Cannabis sativa | Seed | 87500.0 | 136000.0 | -0.4 | * |
| Capparis spinosa | Leaf | -- | 696000.0 | -0.6 | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. |
| Capparis spinosa | Flower | 696000.0 | 795000.0 | -0.1 | * |
| Capsella bursa-pastoris | Plant | -- | 882000.0 | 0.5 | * |
| Capsicum annuum | Fruit | 742000.0 | 937000.0 | 0.7 | * |
| Capsicum frutescens | Fruit | 70000.0 | 889550.0 | 0.5 | * |
| Carica papaya | Leaf | 697000.0 | 703000.0 | -0.5 | * |
| Carica pentagona | Fruit | 930000.0 | 932000.0 | 0.7 | * |
| Carica papaya | Fruit | -- | 865000.0 | 0.4 | * |