| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Hesperis matronalis | Flower | -- | -- | Nielsen, J. K., Jakobsen, H. B., Friis, P., Hansen, K., Moller, J., Olsen, C. E. 1995. Asynchronous Rhythmus in the Emission of Volatiles from Hesperis matronalis Flowers. Phytochemistry, 38(4): 847-851. | |
| Camellia sinensis | Shoot | 15200.0 | 17800.0 | * | |
| Cynara cardunculus | Flower | -- | -- | Leung, A.Y., Encyclopedia of Common Natural Ingredients Used in Food, Drugs, and Cosmetics, John Wiley & Sons, New York, 1980. | |
| Vanilla planifolia | Fruit | -- | -- | * | |
| Glycyrrhiza glabra | Root | -- | -- | Kameoka, H. and Nakai, K. 1987. Components of essential oil from the root of Glycyrrhiza-glabra. Nippon Gogeikagaku Kaishi 61(9): 1119-1122. | |
| Panax ginseng | Shoot | -- | -- | * | |
| Mentha spicata | Essential Oil | -- | -- | * | |
| Zea mays | Silk Essent. Oil | -- | 1000.0 | * | |
| Zea mays | Plant | -- | -- | * | |
| Carthamus tinctorius | Leaf | -- | 0.07 | * |