| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Inonotus obliquus | Plant | -- | -- | * | |
| Juniperus communis | Stem | -- | -- | * | |
| Lawsonia inermis | Bark | -- | -- | * | |
| Lawsonia inermis | Plant | -- | -- | Rizk, A.F.M. and Al-Nowaihi, A.S., The Phytochemistry of the Horticultural Plants of Qatar, Scientific and Applied Research Centre, University of Qatar. | |
| Ligustrum japonicum | Seed | -- | -- | * | |
| Lupinus albus | Seed | -- | -- | * | |
| Lycopersicon esculentum | Plant | -- | -- | * | |
| Maclura pomifera | Plant | -- | -- | * | |
| Maclura pomifera | Root Bark | -- | -- | * | |
| Maclura pomifera | Fruit | 137.0 | 2300.0 | * | |
| Menyanthes trifoliata | Root | -- | -- | * | |
| Morus alba | Plant | -- | -- | * | |
| Myrica cerifera | Fruit | -- | -- | * | |
| Myrica cerifera | Leaf | -- | -- | * | |
| Myrica cerifera | Root | -- | -- | * | |
| Myrica cerifera | Stem | -- | -- | * | |
| Oenothera biennis | Fruit | -- | -- | * | |
| Oenothera biennis | Inflorescence | -- | -- | * | |
| Panax ginseng | Seed Oil | -- | -- | * | |
| Panax quinquefolius | Seed Oil | -- | -- | * |