| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Calendula officinalis | Sprout Seedling | -- | -- | * | |
| Opuntia ficus-indica | Seed Oil | -- | 70000.0 | * | |
| Allium cepa | Seed | -- | -- | Kintia, P. K., Degtiaryova, L. P., Balashova, N. N., Shvets, S. A. 1987. Sterols and Steroidal Glycosides of Bulb Onion Seeds. Fecs. Int. Conf. Chem. Biotechol. Biol. Act. Nat. Prod., (Proc.) 3rd: 166-170. | |
| Aesculus hippocastanum | Seed | -- | -- | Jim Duke's personal files. | |
| Cucumis melo | Stem | -- | -- | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. | |
| Helianthus annuus | Seed | -- | -- | * | |
| Sesamum indicum | Seed Oil | -- | -- | * | |
| Lactuca sativa | Seed | -- | -- | * | |
| Nigella sativa | Seed Oil | -- | -- | * | |
| Avena sativa | Leaf | -- | -- | * | |
| Avena sativa | Seed | -- | -- | * | |
| Cucumis sativus | Leaf | -- | -- | * |