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| Chemical Name | Dosage | Reference |
|---|---|---|
| PABA | not available | Duke, 1992 * |
| PAEONAL | not available | Duke, 1992 * |
| PAEONIFLORIN | not available | Leung, A. Y. and Foster, S. 1995. Encyclopedia of Common Natural Ingredients 2nd Ed. John Wiley & Sons, New York. 649 pp. |
| PAEONOL | not available | Duke, 1992 * |
| PALMATINE | not available | Duke, 1992 * |
| PARA-AMINOBENZOIC-ACID (PABA) | not available | Duke, 1992 * |
| PARTHENOLIDE | not available | Duke, 1992 * |
| PATCHOULI-ALCOHOL | MIC=39->2,500 | Russell, G. B., Phytochemical resources for crop protection, N. Z. J. Technol., 2, 1986, 127-134. |
| PECTIN | not available | Duke, 1992 * |
| PERILLALDEHYDE | MIC=500->1,000 ug/ml | Duke, 1992 * |
| PERILLYL-ALCOHOL | not available | Duke, 1992 * |
| PHAEANTHARINE | not available | Duke, 1992 * |
| PHASEOLIN | 25 ug/ml | Duke, 1992 * |
| PHENETHYL-ALCOHOL | not available | Martindale's 29th |
| PHENOL | not available | Duke, 1992 * |
| PHENYLHEPTATRIYNE | not available | Duke, 1992 * |
| PHLORETIN | 30 ppm | Duke, 1992 * |
| PICEID | not available | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. |
| PIMPINELLIN | not available | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. |
| PINENE | not available | Duke, 1992 * |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Quercus rubra | Northern Red Oak | 9 | 160, 055.8200000599 |
| Quercus stellata | Post Oak | 1 | 5 |
| Quercus suber | Cork Oak | 3 | 245, 000 |
| Quercus velutina | Black Oak | 3 | 5 |
| Quillaja saponaria | Soapbark | 1 | 150, 000 |
| Quisqualis indica | Rangoon Creeper | 3 | 0 |
| Ranunculus bulbosus | Bulbous Buttercup | 2 | 0 |
| Raphanus sativus | Radish | 7 | 21, 279 |
| Rauvolfia serpentina | Indian Snakeroot; Serpentine Wood | 1 | 0 |
| Rauvolfia tetraphylla | Four-Leaf Devilpepper; Pinque-Pinque | 2 | 0 |
| Rauvolfia vomitoria | African Snakeroot | 1 | 0 |
| Ravensara aromatica | Ravensara | 12 | 19, 360 |
| Rehmannia glutinosa | Chinese Foxglove | 2 | 0 |
| Rhamnus cathartica | Buckthorn; European Buckthorn | 2 | 0 |
| Rheum officinale | Chinese Rhubarb | 11 | 25, 490.20000076294 |
| Rheum palmatum | Chinese Rhubarb | 22 | 20, 356 |
| Rheum rhabarbarum | Rhubarb | 19 | 10, 537 |
| Rhizophora mangle | Red Mangrove | 4 | 639, 030 |
| Rhododendron arboreum | not available | 1 | 0 |
| Rhododendron dauricum | Chinese Alpenrose | 13 | 0 |