| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Forsythia suspensa | Fruit | -- | 19.0 | 0.5 | * |
| Foeniculum vulgare | Fruit | 8.0 | 24.0 | 0.9 | * |
| Foeniculum vulgare | Seed | 8.0 | 24.0 | 0.8 | * |
| Firmiana simplex | Seed | -- | 15.0 | 0.0 | * |
| Ficus carica | Fruit | 0.6 | 3.6 | -0.7 | USDA's Ag Handbook 8 and sequelae) |
| Fallopia japonica | Plant | 9.0 | 10.0 | -0.4 | Chem. & Pharm. Bull. 38: 2205. |
| Eupatorium odoratum | Leaf | -- | 35.0 | 0.2 | Tramil |
| Euodia rutaecarpa | Fruit | -- | 16.0 | 0.2 | * |
| Eucommia ulmoides | Bark | -- | 5.0 | -1.1 | Chen, H.C. and Lin, S.M. 1988. Determination of Mineral Elements in Certain Crude Drugs (Part 1), Kaohsiung J. Med. Sci., 4: 259-272. |
| Erythroxylum novogranatense | Leaf | 2.5 | 2.7 | -0.7 | * |
| Erythroxylum coca | Leaf | 2.2 | 13.0 | -0.4 | * |
| Erythroxylum novogranatense | Leaf | 2.7 | 2.9 | -0.7 | * |
| Eriocaulon sp | Leaf | -- | 9.0 | -0.5 | * |
| Eriobotrya japonica | Leaf | -- | 7.0 | -0.6 | Chen, H.C. and Lin, S.M. 1988. Determination of Mineral Elements in Certain Crude Drugs (Part 1), Kaohsiung J. Med. Sci., 4: 259-272. |
| Equisetum hyemale | Plant | -- | 4.0 | -1.1 | * |
| Ephedra spp | Plant | -- | 2.0 | -1.3 | * |
| Eleutherococcus senticosus | Flower | -- | -- | * | |
| Eleutherococcus senticosus | Root | -- | -- | * | |
| Eleutherococcus senticosus | Leaf | -- | -- | * | |
| Eleutherococcus senticosus | Stem | -- | -- | * |