| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Crataegus laevigata | Leaf | -- | -- | * | |
| Crataegus rhipidophylla | Branches | -- | -- | * | |
| Crataegus laevigata | Branches | -- | -- | * | |
| Crataegus monogyna | Flower | -- | -- | * | |
| Crataegus rhipidophylla | Leaf | -- | -- | * | |
| Crataegus rhipidophylla | Shoot | -- | -- | * | |
| Crataegus laevigata | Shoot | -- | -- | * | |
| Crataegus monogyna | Plant | -- | 10000.0 | -0.7 | * |
| Crataegus monogyna | Leaf | -- | 2000.0 | -0.4 | * |
| Crataegus laevigata | Fruit | -- | -- | * | |
| Crataegus pentagyna | Plant | -- | -- | Schussler, M., Fricke, U., Nikolov, N., and Holzl, J. 1991. Comparison of the Flavonoids Occurring in Crataegus species and Inhibition of 3',5'-Cyclic Adenosine Monophosphate Phosphodiesterase. Plant Medica 57: Suppl Issue 2. p.A-133. | |
| Crataegus rhipidophylla | Inflorescence | -- | -- | * | |
| Crataegus laevigata | Bark | -- | -- | * | |
| Crataegus rhipidophylla | Flower | -- | -- | * | |
| Crataegus laevigata | Plant | -- | 10000.0 | -0.7 | * |
| Crataegus laevigata | Flower | -- | -- | * | |
| Cytisus scoparius | Flower | -- | -- | * | |
| Eriobotrya japonica | Shoot | -- | -- | Jim Duke's personal files. | |
| Eucalyptus globulus | Leaf | -- | -- | * | |
| Eucalyptus rostratus | Plant | -- | -- | Okamura, H., Mimura, A., Yakou, Y., Niwano, M., and Takahara, Y. 1992. Antoxidant Activity of Tannins and Flavonoids in Eucalyptus rostrata. Phytochemistry. 33(3): 557-561. 1993. |