| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Spinacia oleracea | Leaf | 12.0 | 419.0 | 0.3 | * |
| Taraxacum officinale | Leaf | -- | 170.0 | -0.6 | Hansel, R., Keller, K., Rimpler, H., and Schneider, G. eds. 1992. Hager's Handbuch der Pharmazeutischen Praxis, Drogen (A-D), 1209 pp., 1993 (E-O), 970 pp., 1994 (P-Z), 1196 pp. Springer-Verlag, Berlin. |
| Trifolium pratense | Inflorescence | 126.0 | 400.0 | * | |
| Trifolium pratense | Plant | -- | -- | * | |
| Triticum aestivum | Seed | -- | 1271.0 | 3.3 | * |
| Triticum aestivum | Oil | 1508.0 | 2170.0 | 2.5 | * |
| Urtica dioica | Leaf | 16.0 | 94.0 | -0.8 | * |
| Urtica dioica | Seed | 230.0 | 380.0 | 0.5 | Blaschek, W., Hansel, R., Keller, K., Reichling, J., Rimpler, H., and Schneider, G. eds. 1998. Hager's Handbuch der Pharmazeutischen Praxis, Auflage Band 2 (A-K), 909 pp., (L-Z), 858 pp. Springer-Verlag, Berlin. |
| Vaccinium macrocarpon | Fruit | 9.0 | 81.0 | 0.1 | * |
| Vaccinium corymbosum | Fruit | 18.0 | 116.0 | 0.7 | * |
| Valeriana officinalis | Flower | -- | 221.0 | 1.0 | * |
| Vitis vinifera | Fruit | 6.0 | 31.0 | -0.6 | * |
| Zea mays | Fruit | -- | -- | * | |
| Zea mays | Seed Oil | -- | -- | * | |
| Zea mays | Oil | 90.0 | 257.0 | -0.3 | * |
| Zea mays | Seed | -- | -- | * |