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| Chemical Name | Dosage | Reference |
|---|---|---|
| BETA-CAROTENE | not available | Duke, 1992 * |
| CEPHARANTHINE | not available | Duke, 1992 * |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Quercus alba | White Oak | 1 | 0 |
| Raphanus sativus | Radish | 1 | 241.20000076293945 |
| Rheum rhabarbarum | Rhubarb | 1 | 17 |
| Rhodymenia palmata | Dulse | 1 | 0 |
| Ribes nigrum | Black Currant | 1 | 8 |
| Ribes rubrum | Red Currant; White Currant | 1 | 8 |
| Ribes uva-crispa | Gooseberry | 1 | 14 |
| Rosa canina | Rose; Dogbrier; Dog Rose | 1 | 126 |
| Rosa gallica | French Rose | 1 | 17 |
| Rosa rubiginosa | Rosa Mosqueta | 1 | 0 |
| Rosmarinus officinalis | Rosemary | 1 | 76 |
| Rubus idaeus | Red Raspberry; Raspberry | 1 | 242 |
| Rumex acetosa | Garden Sorrel | 1 | 1, 100 |
| Rumex crispus | Curly Dock; Lengua De Vaca; Yellow Dock; Sour Dock | 1 | 1, 460 |
| Ruscus aculeatus | Butcher's Broom; Box-Holly | 1 | 26 |
| Salix alba | White Willow | 1 | 0 |
| Salvia officinalis | Sage | 1 | 39 |
| Sambucus canadensis | American Elder; Elderberry; American Elderberry; Sweet Elder | 1 | 72 |
| Sambucus nigra | European Alder; European Elder; European Elderberry; Elder; Black Elder | 1 | 1, 500 |
| Satureja hortensis | Summer Savory | 1 | 34 |