| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Symphytum officinale | Leaf | 3960.0 | 36000.0 | -1.5 | * |
| Kalmia latifolia | Leaf | -- | 36000.0 | -1.5 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Juncus effusus | Leaf | -- | 36000.0 | -1.5 | * |
| Areca catechu | Sprout Seedling | -- | 10000.0 | -1.4 | * |
| Spirulina spp. | Plant | -- | 43000.0 | -1.4 | * |
| Cymbopogon citratus | Plant | -- | 43000.0 | -1.4 | Pedersen, M. 1987. Nutritional Herbology. Pederson Publishing. Bountiful, Utah. 377 pp. |
| Pinus echinata | Shoot | 17000.0 | 42000.0 | -1.4 | * |
| Cydonia oblonga | Fruit | -- | 3000.0 | -1.4 | * |
| Anacardium occidentale | Leaf | 12000.0 | 40000.0 | -1.4 | * |
| Ocimum tenuiflorum | Seed | -- | 2000.0 | -1.4 | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. |
| Ocimum sanctum | Seed | -- | 2000.0 | -1.4 | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. |
| Abies spectabilis | Leaf | -- | 40600.0 | -1.4 | Wealth of India. |
| Citrus aurantiifolia | Fruit | 2000.0 | 3800.0 | -1.4 | * |
| Platycodon grandiflorum | Root | 15000.0 | 20000.0 | -1.4 | * |
| Petasites japonicus | Pt | 14600.0 | 26545.0 | -1.3 | USDA's Ag Handbook 8 and sequelae) |
| Ilex paraguariensis | Leaf | -- | 42500.0 | -1.3 | * |
| Hippophae rhamnoides | Fruit | -- | 5000.0 | -1.3 | Abstract (See species file) |
| Physalis alkekingi | Fruit | -- | 5000.0 | -1.3 | * |
| Dioscorea bulbifera | Tuber | 9000.0 | 31000.0 | -1.3 | * |
| Castanea sativa | Leaf | -- | 44000.0 | -1.3 | * |