| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Juniperus virginiana | Bark | 21000.0 | 86000.0 | -0.5 | * |
| Krameria triandra | Root | -- | -- | * | |
| Lagochilus inebrians | Plant | 20000.0 | 40000.0 | -0.6 | * |
| Lantana camara | Leaf | -- | -- | * | |
| Lavandula angustifolia | Plant | -- | 120000.0 | 0.5 | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. |
| Lavandula angustifolia | Flower | 50000.0 | 120000.0 | 0.5 | * |
| Leonurus cardiaca | Plant | 21000.0 | 90000.0 | 0.1 | * |
| Lepidium meyenii | Root | -- | -- | * | |
| Ligustrum vulgare | Leaf | 60000.0 | 100000.0 | -0.1 | * |
| Ligustrum vulgare | Bark | -- | 70000.0 | -0.6 | * |
| Lindera benzoin | Plant | -- | -- | * | |
| Liquidambar styraciflua | Plant | -- | -- | * | |
| Liquidambar orientalis | Plant | -- | -- | * | |
| Lonicera japonica | Plant | -- | 80000.0 | -0.1 | * |
| Lycopus virginicus | Plant | -- | -- | * | |
| Lythrum salicaria | Leaf | -- | 120000.0 | 0.1 | * |
| Lythrum salicaria | Stem | -- | 105000.0 | 0.6 | * |
| Lythrum salicaria | Flower | -- | 137000.0 | 0.8 | * |
| Lythrum salicaria | Root | -- | 85000.0 | 0.3 | * |
| Maclura pomifera | Wood | 90000.0 | 100000.0 | 1.2 | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. |