| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Angelica archangelica | Fruit | -- | 66.0 | 1.9 | * |
| Ammi majus | Seed | 100.0 | 8000.0 | 1.1 | * |
| Angelica archangelica | Seed | 50.0 | 5000.0 | 0.2 | * |
| Zanthoxylum americanum | Fruit | 5.0 | 19.0 | -0.1 | * |
| Levisticum officinale | Fruit | -- | 13.0 | -0.4 | Abstract (See species file) |
| Petroselinum crispum | Fruit | 1.0 | 6.0 | -0.7 | * |
| Foeniculum vulgare | Fruit | -- | 3.0 | -0.8 | * |
| Foeniculum vulgare | Seed | -- | 3.0 | -1.3 | * |
| Glehnia littoralis | Rhizome | -- | -- | * | |
| Glehnia littoralis | Root | -- | -- | * | |
| Angelica archangelica | Plant | -- | -- | * | |
| Angelica archangelica | Shoot | -- | -- | * | |
| Angelica dahurica | Root | -- | -- | * | |
| Petroselinum crispum | Leaf | -- | 0.53 | * | |
| Citrus limon | Fruit Essent. Oil | -- | -- | Jim Duke's personal files. | |
| Pimpinella anisum | Leaf | -- | -- | * | |
| Apium graveolens | Seed | -- | -- | Wealth of India. | |
| Citrus aurantiifolia | Fruit | -- | -- | Leung, A. Y. and Foster, S. 1995. Encyclopedia of Common Natural Ingredients 2nd Ed. John Wiley & Sons, New York. 649 pp. | |
| Chenopodium album | Plant | -- | -- | * | |
| Pastinaca sativa | Leaf | -- | -- | * |