| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Illicium verum | Fruit | -- | 100.0 | * | |
| Carum carvi | Seed | -- | -- | * | |
| Hedychium flavum | Shoot | -- | 10.0 | -0.5 | * |
| Boswellia sacra | Resin Essent. Oil | -- | 2000.0 | Abdel Wahab, S. M., Aboutabl, E. A., El-Zalabani, S. M., Fouad, H. A., De Pooter, H. L., El-Fallaha, B. 1987. The Essential Oil of Olibanum. Plant Med. 53 (4): 382-384. | |
| Thymus x citriodorus | Plant | -- | 20.0 | -1.0 | Stahl-Biskup, E. and Holthuijzen, J. 1995. Essential oil and glycosidally bound volatiles of lemon-scented thyme, Thymus x citriodorus (Pers.) Schreb. Flav. & Fragr. J. 10: 225-229. |
| Apium graveolens | Seed Essent. Oil | -- | -- | * | |
| Micromeria fruticosa | Leaf | -- | 120.0 | -0.7 | Kirimer, N., Ozek, T., and Baser, K.H.C. 1991. Composition of the Essential Oil of Micromeria congesta. J. Ess. Oil Res., 3: 387-393. |
| Artemisia dracunculus | Essential Oil | -- | -- | * | |
| Artemisia dracunculus | Leaf | -- | -- | * | |
| Lantana camara | Shoot | -- | 1.0 | -0.5 | * |
| Trifolium pratense | Leaf | -- | -- | * | |
| Trifolium pratense | Flower | -- | -- | * | |
| Trifolium pratense | Fruit | -- | -- | * | |
| Petroselinum crispum | Leaf | -- | -- | * | |
| Petroselinum crispum | Plant | -- | -- | * |