| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Viscum album | Leaf | -- | 3110.0 | -0.4 | * |
| Linum usitatissimum | Hay | -- | 3100.0 | -1.0 | * |
| Brassica oleracea var. botrytis l. | Leaf | 214.0 | 3072.0 | -0.4 | * |
| Brassica oleracea var. italica | Leaf | 214.0 | 3072.0 | -0.4 | USDA's Ag Handbook 8 and sequelae) |
| Syzygium aromaticum | Fruit | 2640.0 | 3020.0 | 0.4 | * |
| Syzygium aromaticum | Flower | 2640.0 | 3020.0 | 0.2 | * |
| Origanum vulgare | Plant | 2600.0 | 3016.0 | -0.3 | USDA's Ag Handbook 8 and sequelae) |
| Thymus vulgaris | Plant | 1630.0 | 2992.0 | -0.3 | USDA's Ag Handbook 8 and sequelae) |
| Lonicera japonica | Flower | -- | 2990.0 | 0.1 | * |
| Notopterygium incisum | Rhizome | -- | 2980.0 | 1.4 | * |
| Carum carvi | Seed | 2070.0 | 2950.0 | 0.0 | * |
| Quercus phellos | Stem | 210.0 | 2940.0 | -0.8 | * |
| Hydrastis canadensis | Root | 814.0 | 2940.0 | 0.2 | * |
| Chenopodium album | Seed | -- | 2920.0 | -0.0 | * |
| Chamaemelum nobile | Flower | -- | 2920.0 | 0.1 | * |
| Avena sativa | Seed | 300.0 | 2900.0 | -0.0 | Jim Duke's personal files.* |
| Genipa americana | Fruit | 250.0 | 2900.0 | 0.4 | * |
| Anethum graveolens | Seed | 2449.0 | 2893.0 | -0.0 | USDA's Ag Handbook 8 and sequelae) |
| Anethum graveolens | Fruit | 2449.0 | 2893.0 | 0.4 | * |
| Stevia rebaudiana | Plant | -- | 2890.0 | -0.4 | Kinghorn, A. D. (Ed.) 2002. Medicinal and Aromatic Plants - Industrial Profiles. Stevia. The genus Stevia. Taylor & Francis. New York, NY. 211 pp. |