| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Alpinia officinarum | Rhizome | -- | 5.4 | -1.0 | * |
| Arctostaphylos uva-ursi | Leaf | -- | 3.2 | -1.0 | * |
| Aspalathus linearis | Plant | 0.44 | 1.65 | -0.6 | * |
| Camellia sinensis | Leaf | -- | 188.0 | 1.0 | * |
| Ephedra sinica | Shoot | -- | 3.5 | -1.0 | Jim Duke's personal files. |
| Glycyrrhiza glabra | Root | -- | 4.2 | -0.6 | * |
| Houttuynia cordata | Shoot | -- | 11.0 | 1.0 | * |
| Momordica charantia | Fruit | 0.2 | 0.5 | -1.0 | =ICMR(Indian Council of Medical Research).1976.Medicinal Plants of India.Vol.1.Indian Council of Med. Res.Cambridge Printing Works, New Delhi.487 pp;ICMR.1987.Medicinal Plants of India.Vol.2.Indian Council of Med. Res.Cambr. Printing Works,New Delhi.600pp |
| Panax ginseng | Root | -- | 26.3 | 1.7 | * |
| Physalis peruviana | Fruit | -- | 0.2 | -1.2 | * |
| Piper nigrum | Fruit | -- | 3.6 | 1.5 | =ICMR(Indian Council of Medical Research).1976.Medicinal Plants of India.Vol.1.Indian Council of Med. Res.Cambridge Printing Works, New Delhi.487 pp;ICMR.1987.Medicinal Plants of India.Vol.2.Indian Council of Med. Res.Cambr. Printing Works,New Delhi.600pp |
| Pueraria montana | Root | -- | 6.6 | -0.4 | * |
| Punica granatum | Plant | 0.2 | 0.3 | -0.8 | * |
| Schisandra chinensis | Fruit | -- | 2.1 | 0.3 | * |
| Scutellaria baicalensis | Root | -- | 3.5 | -0.7 | * |
| Stevia rebaudiana | Plant | -- | 12.0 | 1.4 | Kinghorn, A. D. (Ed.) 2002. Medicinal and Aromatic Plants - Industrial Profiles. Stevia. The genus Stevia. Taylor & Francis. New York, NY. 211 pp. |
| Syzygium aromaticum | Fruit | -- | 2.4 | 0.5 | * |
| Zingiber officinale | Rhizome | -- | 7.9 | 1.0 | * |