| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Valeriana officinalis | Rhizome | -- | -- | * | |
| Lippia javanica | Plant | -- | -- | Neidlein, R., Staehle, R. 1974. Constituents of Lippia javanica. III. Deutsche Apot. Ziit., 114: 1588. | |
| Dryopteris marginalis | Plant | -- | -- | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. | |
| Glycine max | Shoot | -- | -- | * | |
| Camellia sinensis | Plant | -- | -- | * | |
| Harpagophytum procumbens | Root | -- | 60.0 | -1.7 | * |
| Angelica archangelica | Leaf | -- | -- | * | |
| Santalum album | Fruit | -- | -- | * | |
| Coriandrum sativum | Fruit | -- | -- | * | |
| Tilia sp. | Flower | -- | -- | * | |
| Fagopyrum esculentum | Seed | -- | 6880.0 | -0.7 | * |
| Aloe vera | Leaf | -- | 15769.0 | 0.7 | * |
| Lentinus edodes | Fruit | -- | -- | * | |
| Lycium chinense | Leaf | -- | -- | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. |