| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Linum usitatissimum | Leaf | -- | -- | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. | |
| Trigonella foenum-graecum | Seed | -- | -- | * | |
| Tragopogon porrifolius | Plant | -- | -- | * | |
| Crataegus monogyna | Leaf | -- | 3.0 | * | |
| Crataegus monogyna | Flower | -- | -- | * | |
| Trigonella foenum-graecum | Plant | -- | -- | * | |
| Triticum aestivum | Plant | -- | -- | * |