| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Glycine max | Seed | 8.0 | 19.0 | -0.7 | * |
| Glycine max | Oil | -- | 95.0 | -0.6 | * |
| Glycine max | Seed Coat | -- | -- | * | |
| Hedera helix | Leaf | -- | -- | * | |
| Helianthus annuus | Oil | -- | 622.0 | 0.2 | * |
| Hibiscus sabdariffa | Seed | -- | 500.0 | 0.9 | * |
| Hordeum vulgare | Tissue Culture | -- | -- | * | |
| Hordeum vulgare | Seed | 3.0 | 11.0 | -0.7 | Jim Duke's personal files.* |
| Hordeum vulgare | Leaf | -- | -- | * | |
| Hordeum vulgare | Sprout Seedling | -- | -- | * | |
| Hordeum vulgare | Root | -- | -- | * | |
| Humulus lupulus | Strobilus | -- | -- | * | |
| Juglans regia | Seed | -- | 135.0 | -0.3 | * |
| Lactuca sativa | Fruit | 6.0 | 139.0 | 1.0 | * |
| Lactuca scariola | Seed | -- | -- | * | |
| Lepidium sativum | Oil | -- | 1830.0 | 2.0 | * |
| Lepidium sativum | Leaf | 7.0 | 66.0 | -0.9 | * |
| Linum usitatissimum | Oil | -- | 5.0 | -0.7 | * |
| Linum usitatissimum | Seed Oil | -- | -- | * | |
| Lycium chinense | Leaf | 94.0 | 177.0 | -0.5 | * |