| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Lonicera japonica | Fruit | -- | -- | * | |
| Ginkgo biloba | Tissue Culture | -- | -- | Jim Duke's personal files. | |
| Lycopersicon esculentum | Fruit | -- | -- | * | |
| Cucurbita pepo | Flower | -- | -- | * | |
| Viola tricolor | Flower | -- | -- | * | |
| Medicago sativa | Leaf | -- | -- | * | |
| Medicago sativa | Flower | -- | -- | * | |
| Calendula officinalis | Flower | -- | -- | * |