| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Lactuca sativa | Leaf | 10.0 | 800.0 | 2.0 | * |
| Larrea tridentata | Plant | 1.0 | 3.1 | -0.5 | * |
| Lobelia inflata | Leaf | 0.1 | 0.8 | -0.4 | * |
| Lycopersicon esculentum | Fruit | -- | -- | * | |
| Malus domestica | Fruit | -- | 70.0 | -0.4 | * |
| Medicago sativa | Plant | -- | -- | * | |
| Mentha x piperita | Leaf | -- | -- | * | |
| Mentha pulegium | Plant | -- | 182.0 | 0.6 | Pedersen, M. 1987. Nutritional Herbology. Pederson Publishing. Bountiful, Utah. 377 pp. |
| Musa x paradisiaca | Fruit | 70.0 | 350.0 | 0.5 | ACTA AGRIC SCAND SUPPL 22: 1980 |
| Myrica cerifera | Bark | -- | -- | * | |
| Nepeta cataria | Plant | -- | -- | * | |
| Panax quinquefolius | Plant | -- | -- | * | |
| Panax ginseng | Root | -- | -- | * | |
| Parthenium integrifolium | Root | -- | -- | * | |
| Passiflora incarnata | Flower | -- | -- | * | |
| Pastinaca sativa | Root | 2.0 | 50.0 | -0.1 | * |
| Petroselinum crispum | Plant | 0.3 | 3.6 | -0.5 | * |
| Petroselinum crispum | Leaf | 60.0 | 1425.0 | 3.8 | ACTA AGRIC SCAND SUPPL 22: 1980 |
| Phaseolus vulgaris | Fruit | 80.0 | 1200.0 | 3.3 | ACTA AGRIC SCAND SUPPL 22: 1980 |
| Phoenix dactylifera | Fruit | -- | 660.0 | 1.5 | Duke, J. A. Writeups or information summaries on approximately 2,000 economic plants, USDA, ARS, Beltsville, MD 20705. |