| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Thymus funkii | Shoot | -- | 5.0 | -0.5 | Vila, R., et al. 1995. Composition and study of the variability of the essential oil of Thymus funkii Cousson. Flav. & Fragr. J. 10(6): 379-383. |
| Trichostemma dichotomum | Shoot | -- | 0.9 | -0.5 | Tucker, A.O. and Maciarello, M.J. 1990. The Essential Oil of Trichostemma dichotomum. J. Ess. Oil Res. 2: 149-150. |
| Trifolium pratense | Leaf | -- | -- | * | |
| Trifolium pratense | Fruit | -- | -- | * | |
| Trifolium pratense | Flower | -- | -- | * |