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| Chemical Name | Dosage | Reference |
|---|---|---|
| COPPER | not available | Davies, S., and Stewart, A. 1990. Nutritional Medicine. Avon Books, New York. 509pp. |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Quercus velutina | Black Oak | 1 | 31 |
| Quisqualis indica | Rangoon Creeper | 1 | 13 |
| Raphanus sativus | Radish | 1 | 14 |
| Rehmannia glutinosa | Chinese Foxglove | 1 | 4 |
| Rheum palmatum | Chinese Rhubarb | 1 | 10 |
| Rheum rhabarbarum | Rhubarb | 1 | 5.199999809265137 |
| Rhizophora mangle | Red Mangrove | 1 | 35 |
| Rhus copallina | Dwarf Sumac; Winged Sumac | 1 | 98 |
| Rhus glabra | Smooth Sumac | 1 | 20 |
| Ribes nigrum | Black Currant | 1 | 7 |
| Ribes rubrum | Red Currant; White Currant | 1 | 14 |
| Ribes uva-crispa | Gooseberry | 1 | 6 |
| Rosa canina | Rose; Dogbrier; Dog Rose | 1 | 108 |
| Rosa laevigata | Cherokee Rose | 1 | 9 |
| Rosmarinus officinalis | Rosemary | 1 | 25 |
| Rubia cordifolia | Madder | 1 | 15 |
| Rubus chamaemorus | Cloudberry | 1 | 5.599999904632568 |
| Rubus chingii | Chinese Raspberry | 1 | 12 |
| Rubus idaeus | Red Raspberry; Raspberry | 1 | 12 |
| Rumex acetosa | Garden Sorrel | 1 | 30 |