| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Diospyros virginiana | Leaf | -- | 50000.0 | -1.2 | * |
| Sassafras albidum | Stem | 11000.0 | 37000.0 | -1.2 | * |
| Lobelia inflata | Leaf | 5537.0 | 49000.0 | -1.2 | * |
| Coriandrum sativum | Seed | 6000.0 | 6600.0 | -1.2 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Amorphophallus konjac | Root | -- | 24000.0 | -1.2 | * |
| Ginkgo biloba | Leaf | 11520.0 | 48000.0 | -1.2 | * |
| Sphenostylis stenocarpa | Root | 8000.0 | 23000.0 | -1.3 | * |
| Uncaria catechu | Plant | 30000.0 | 50000.0 | -1.3 | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. |
| Nepeta cataria | Plant | 6000.0 | 50000.0 | -1.3 | * |
| Musa x paradisiaca | Flower | -- | 12000.0 | -1.3 | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. |
| Lantana camara | Stem | -- | 35000.0 | -1.3 | * |
| Castanea sativa | Leaf | -- | 44000.0 | -1.3 | * |
| Indigofera tinctoria | Leaf | -- | 44000.0 | -1.3 | * |
| Dioscorea bulbifera | Tuber | 9000.0 | 31000.0 | -1.3 | * |
| Hippophae rhamnoides | Fruit | -- | 5000.0 | -1.3 | Abstract (See species file) |
| Physalis alkekingi | Fruit | -- | 5000.0 | -1.3 | * |
| Ilex paraguariensis | Leaf | -- | 42500.0 | -1.3 | * |
| Petasites japonicus | Pt | 14600.0 | 26545.0 | -1.3 | USDA's Ag Handbook 8 and sequelae) |
| Platycodon grandiflorum | Root | 15000.0 | 20000.0 | -1.4 | * |
| Citrus aurantiifolia | Fruit | 2000.0 | 3800.0 | -1.4 | * |