| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Psophocarpus tetragonolobus | Leaf | 80.0 | 346.0 | -1.5 | * |
| Vaccinium corymbosum | Fruit | 48.0 | 332.0 | -0.8 | * |
| Syzygium jambos | Fruit | 40.0 | 260.0 | -0.9 | Morton, J.F., Major Medicinal Plants. 1977. Atlas of Medicinal Plants of Middle America. Bahamas to Yucatan. 1981. |
| Spondias dulcis | Fruit | 48.0 | 240.0 | -0.9 | * |
| Quercus alba | Bark | 37.0 | 160.0 | -1.1 | * |
| Aspalathus linearis | Plant | -- | 140.0 | -1.2 | * |
| Punica granatum | Fruit | -- | 120.0 | -0.9 | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. |
| Arisaema consanguineum | Rhizome | -- | 100.0 | -1.6 | * |
| Spondias tuberosa | Fruit | -- | 90.0 | -0.9 | * |
| Juniperus communis | Fruit | 9.0 | 30.0 | -1.0 | * |
| Angelica dahurica | Root | -- | 3.67 | -1.4 | * |
| Acacia catechu | Plant | -- | -- | * | |
| Acacia nilotica | Plant | -- | -- | * | |
| Aspalathus linearis | Leaf | -- | -- | * | |
| Acacia senegal | Plant | -- | -- | * | |
| Amorphophallus konjac | Root | -- | -- | * | |
| Urtica dioica | Fruit Juice | -- | -- | Jim Duke's personal files. | |
| Commiphora wightii | Inflorescence | -- | -- | Jim Duke's personal files. |