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| Chemical Name | Dosage | Reference |
|---|---|---|
| CAFFEIC-ACID | not available | Economic & Medicinal Plant Research, 5: 207. |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Pisum sativum | Pea | 1 | 0 |
| Plantago major | Common Plantain | 1 | 0 |
| Polypodium vulgare | Common Polypody; Sweet Fern | 1 | 0 |
| Populus balsamifera | Balsam Poplar | 1 | 0 |
| Portulaca oleracea | Purslane; Verdolaga | 1 | 0 |
| Prunus armeniaca | Apricot | 1 | 0 |
| Prunus cerasus | Sour Cherry | 1 | 0 |
| Prunus domestica | Plum | 1 | 0 |
| Prunus dulcis | Almond | 1 | 0 |
| Prunus laurocerasus | Cherry Laurel | 1 | 0 |
| Prunus persica | Peach | 1 | 0 |
| Prunus serotina | Black Cherry; Wild Cherry | 1 | 0 |
| Prunus spinosa | Blackthorn; Sloe | 1 | 0 |
| Pteridium aquilinum | Bracken; Bracken Fern | 1 | 0 |
| Punica granatum | Pomegranate; Grenadier (Fr.); Granatapfelbaum (Ger.); Granatapfelstrauch (Ger.); Zakuro (Jap.); Romanzeiro (Port.); Granado (Sp.); Mangrano (Sp.) | 1 | 0 |
| Pyrus communis | Pear | 1 | 19, 700 |
| Raphanus sativus | Radish | 1 | 91 |
| Rheum officinale | Chinese Rhubarb | 1 | 0 |
| Rheum rhabarbarum | Rhubarb | 1 | 8 |
| Rhododendron ponticum | Pontic Alpenrose | 1 | 0 |