| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Passiflora incarnata | Plant | -- | -- | * | |
| Astragalus membranaceus | Root | -- | -- | Chemical Constituents of Oriental Herbs (3 diff. books) | |
| Ophiopogon japonicus | Tuber | -- | -- | * | |
| Alisma plantago-aquatica | Rhizome | -- | -- | * | |
| Rehmannia glutinosa | Root | 17000.0 | 56000.0 | * | |
| Maclura pomifera | Fruit | -- | -- | * | |
| Cnidium officinale | Rhizome | -- | -- | * | |
| Panax quinquefolius | Plant | 4160.0 | 5000.0 | * | |
| Boswellia serrata | Plant | -- | -- | * | |
| Panax ginseng | Root | -- | -- | Chemical Constituents of Oriental Herbs (3 diff. books) | |
| Cyperus rotundus | Root | -- | -- | * | |
| Phyllanthus emblica | Fruit | -- | -- | * | |
| Hydrastis canadensis | Plant | -- | -- | * |