| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Zizyphus jujuba | Leaf | -- | 2000.0 | -0.5 | * |
| Zizyphus spina-christi | Fruit | -- | -- | * | |
| Zizyphus jujuba | Fruit | 270.0 | 2120.0 | -0.3 | * |
| Zizyphus jujuba | Shoot | -- | 2300.0 | -0.5 | * |
| Zingiber officinale | Root | 181.0 | 2580.0 | -0.2 | * |
| Zingiber officinale | Rhizome | 320.0 | 5323.0 | 0.5 | * |
| Zea mays | Silk Stigma Style | -- | 287.0 | * | |
| Zea mays | Seed | 600.0 | 4066.0 | -0.3 | * |
| Yucca baccata | Root | 169.0 | 810.0 | -0.5 | * |
| Xanthosoma sagittifolium | Root | 470.0 | 4700.0 | 0.2 | * |
| Xanthosoma sagittifolium | Leaf | 610.0 | 38416.0 | 6.2 | * |
| Vitis vinifera | Fruit | 117.0 | 1848.0 | -0.4 | * |
| Vitis vinifera | Stem | -- | 1710.0 | -0.6 | Pedersen, M. 1987. Nutritional Herbology. Pederson Publishing. Bountiful, Utah. 377 pp. |
| Vitellaria paradoxa | Seed | -- | 430.0 | -1.3 | * |
| Viscum album | Leaf | -- | 2400.0 | -0.5 | * |
| Vigna aconitifolia | Fruit | -- | 2500.0 | -0.2 | * |
| Vigna unguiculata | Seed | 520.0 | 15593.0 | 2.7 | * |
| Vigna unguiculata | Shoot | 90.0 | 881.0 | -1.1 | * |
| Vigna unguiculata | Fruit | 590.0 | 4856.0 | 0.5 | USDA's Ag Handbook 8 and sequelae) |
| Vigna radiata | Seed | 3260.0 | 4500.0 | -0.2 | * |