| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Hypericum perforatum | Plant | -- | -- | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. | |
| Ilex paraguariensis | Leaf | -- | -- | * | |
| Ipomoea batatas | Root | 60.0 | 221.0 | -0.4 | * |
| Iris versicolor | Rhizome | -- | -- | * | |
| Jatropha curcas | Seed | 26400.0 | 87360.0 | 1.3 | * |
| Juglans regia | Seed | 2000.0 | 21030.0 | -0.1 | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. |
| Juglans cinerea | Seed | 4250.0 | 4397.0 | -0.5 | * |
| Juglans nigra | Seed | 13940.0 | 14575.0 | -0.2 | USDA's Ag Handbook 8 and sequelae) |
| Juglans nigra | Seed Oil | -- | -- | * | |
| Juniperus communis | Plant | -- | -- | * | |
| Lablab purpureus | Seed | 90.0 | 742.0 | -0.5 | * |
| Lactuca scariola | Seed | -- | 13165.0 | -0.3 | * |
| Lactuca sativa | Leaf | 40.0 | 667.0 | -0.2 | * |
| Lagenaria siceraria | Fruit | -- | -- | * | |
| Lawsonia inermis | Seed | 8835.0 | 19285.0 | -0.1 | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. |
| Lawsonia inermis | Oil | 157800.0 | 158000.0 | * | |
| Lens culinaris | Seed | 140.0 | 160.0 | -0.6 | USDA's Ag Handbook 8 and sequelae) |
| Lens culinaris | Sprout Seedling | 60.0 | 200.0 | -1.4 | USDA's Ag Handbook 8 and sequelae) |
| Leonotis nepetaefolia | Seed | 3360.0 | 4560.0 | -0.5 | * |
| Lepidium sativum | Leaf | 70.0 | 660.0 | -0.2 | * |