| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Citrus paradisi | Pericarp | -- | 9.0 | * | |
| Carthamus tinctorius | Flower | -- | 0.03 | * | |
| Carthamus tinctorius | Leaf | -- | 0.03 | -0.7 | * |
| Nepeta racemosa | Shoot | -- | 9.0 | 0.7 | Baser, K.H.C., Ozek, T., Akgul, A. and Tumen, G. 1993. Composition of the Essential Oil of Nepeta racemosa Lam. J. Ess. Oil Res. 5: 215-7. |
| Nepeta racemosa | Shoot | -- | 9.0 | 0.7 | Baser, K.H.C., Ozek, T., Akgul, A. and Tumen, G. 1993. Composition of the Essential Oil of Nepeta racemosa Lam. J. Ess. Oil Res. 5: 215-7. |
| Carica papaya | Fruit | -- | -- | * | |
| Lavandula x intermedia | Plant | -- | -- | Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980. | |
| Rosa damascena | Essential Oil | -- | -- | * | |
| Houttuynia cordata | Plant | -- | -- | * | |
| Citrus aurantium | Leaf | -- | 1.0 | -0.7 | * |