| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Juncus effusus | Pith | -- | 920.0 | -1.0 | * |
| Juniperus virginiana | Shoot | 266.0 | 8800.0 | 0.2 | * |
| Juniperus communis | Fruit | 9.0 | 30.0 | -1.0 | * |
| Jussiaea repens | Plant | -- | 3590.0 | -0.1 | * |
| Lablab purpureus | Seed | 400.0 | 5505.0 | 1.0 | * |
| Lactuca sativa | Leaf | 110.0 | 8700.0 | 1.8 | * |
| Lagenaria siceraria | Fruit | 110.0 | 2465.0 | 0.2 | * |
| Lantana camara | Fruit | -- | 1460.0 | -0.3 | * |
| Larrea tridentata | Plant | 566.0 | 1720.0 | -0.7 | * |
| Lens culinaris | Sprout Seedling | 345.0 | 1323.0 | -1.3 | USDA's Ag Handbook 8 and sequelae) |
| Lens culinaris | Seed | 765.0 | 1280.0 | -0.7 | * |
| Ligustrum japonicum | Fruit | -- | 1020.0 | -0.5 | * |
| Ligustrum lucidum | Fruit | -- | 1020.0 | -0.5 | Chen, H.C. and Lin, S.M. 1988. Determination of Mineral Elements in Certain Crude Drugs (Part 1), Kaohsiung J. Med. Sci., 4: 259-272. |
| Linum usitatissimum | Seed | 3715.0 | 7002.0 | 1.6 | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. |
| Linum usitatissimum | Hay | -- | 3100.0 | -1.0 | * |
| Liquidambar styraciflua | Stem | 200.0 | 8400.0 | 1.5 | * |
| Liquidambar styraciflua | Leaf | 280.0 | 5740.0 | 0.6 | * |
| Lobelia inflata | Leaf | 183.0 | 1620.0 | -1.0 | * |
| Lonicera japonica | Flower | -- | 2990.0 | 0.1 | * |
| Lophatherum gracile | Plant | -- | 2490.0 | -0.5 | * |