| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Costus speciosus | Plant | -- | -- | J.S. Glasby Dict.Pls Containing 2ndary Metabolite. 1991. | |
| Terminalia chebula | Fruit | -- | -- | Lu, P. P., Liu, X. J., Li, X. G., Wen, J. Q. 1991. Chemical Constituents of Fruits of Terminalia chebula Retz. Shanghai Yike Daxue Xuebao 18 (3): 233-235. | |
| Stellaria media | Shoot | -- | -- | * | |
| Solanum tuberosum | Leaf | -- | -- | * |