| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Acinos suaveolens | Shoot | -- | 123.3 | Jim Duke's personal files. | |
| Agastache nepetoides | Inflorescence | -- | -- | Jim Duke's personal files. | |
| Agastache rugosa | Leaf | -- | -- | Jim Duke's personal files. | |
| Agastache foeniculum | Leaf | -- | -- | Jim Duke's personal files. | |
| Agastache rugosa | Inflorescence | -- | -- | Jim Duke's personal files. | |
| Agastache nepetoides | Leaf | -- | -- | Jim Duke's personal files. | |
| Agastache foeniculum | Inflorescence | -- | -- | Jim Duke's personal files. | |
| Agrimonia eupatoria | Shoot | -- | -- | * | |
| Capsicum annuum | Leaf | -- | -- | * | |
| Centaurea cyanus | Shoot | -- | -- | Jim Duke's personal files. | |
| Crataegus laevigata | Leaf | -- | -- | * | |
| Crataegus laevigata | Flower | -- | -- | * | |
| Cuminum cyminum | Seed | -- | 500.0 | -1.0 | * |
| Cynara cardunculus | Shoot | -- | -- | Jim Duke's personal files. | |
| Cynara cardunculus | Stem | -- | -- | Jim Duke's personal files. | |
| Cynara cardunculus | Flower | -- | -- | Jim Duke's personal files. | |
| Cynara cardunculus | Leaf | -- | -- | Jim Duke's personal files. | |
| Ferula assa-foetida | Fruit | -- | -- | * | |
| Foeniculum vulgare | Leaf | -- | -- | Jim Duke's personal files. | |
| Glechoma hederacea | Plant | -- | -- | * |