| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Origanum syriacum | Shoot | -- | 45.0 | -0.3 | Fleisher, A. & Fleisher, Z. 1991. Chemical Composition of Origanum syriacum L. Essential Oil. J. Ess. Oil Res. 3: 121-123. |
| Origanum syriacum | Shoot | -- | 55.0 | -0.3 | Fleisher, A. & Fleisher, Z. 1991. Chemical Composition of Origanum syriacum L. Essential Oil. J. Ess. Oil Res. 3: 121-123. |
| Pogostemon cablin | Plant | -- | -- | * | |
| Coriandrum sativum | Fruit | -- | -- | Leung, A. Y. and Foster, S. 1995. Encyclopedia of Common Natural Ingredients 2nd Ed. John Wiley & Sons, New York. 649 pp. | |
| Coriandrum sativum | Seed Essent. Oil | -- | 3610.0 | * |