| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Panax quinquefolius | Plant | 396.0 | 4450.0 | -1.3 | * |
| Panax ginseng | Root | -- | -- | * | |
| Papaver somniferum | Seed | 45410.0 | 48713.0 | 0.3 | * |
| Papaver bracteatum | Seed | 37600.0 | 43200.0 | 0.1 | * |
| Perideridia gairdneri | Root | -- | 12319.0 | -0.2 | Izadoost, M. & Robinson, T., Synergism & antagonism in the pharmacology of alkaloidal plants, pp 137-58 in Craker, L. & Simon, J., eds., Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture & Pharmacology, v. 2, 1987, 255pp. |
| Persea americana | Fruit | 1660.0 | 8045.0 | -0.4 | * |
| Phaseolus vulgaris | Sprout Seedling | 5120.0 | 55054.0 | 1.1 | USDA's Ag Handbook 8 and sequelae) |
| Phaseolus lunatus | Seed | 8810.0 | 33820.0 | -0.3 | USDA's Ag Handbook 8 and sequelae) |
| Phaseolus vulgaris | Seed | 32940.0 | 37019.0 | -0.2 | USDA's Ag Handbook 8 and sequelae) |
| Phaseolus vulgaris | Fruit | 1870.0 | 19219.0 | 0.5 | USDA's Ag Handbook 8 and sequelae) |
| Phoenix dactylifera | Fruit | 400.0 | 6160.0 | -0.6 | * |
| Phyllanthus emblica | Fruit | 1320.0 | 6535.0 | -0.5 | * |
| Pinellia ternata | Tuber | -- | -- | * | |
| Pinus edulis | Seed | 19690.0 | 20925.0 | -0.9 | USDA's Ag Handbook 8 and sequelae) |
| Pinus pinea | Seed | 40840.0 | 59800.0 | 0.8 | * |
| Pistacia vera | Seed | 49160.0 | 51139.0 | 0.4 | * |
| Pisum sativum | Seed | 7400.0 | 35005.0 | -0.3 | * |
| Pisum sativum | Fruit | 4480.0 | 44313.0 | 2.4 | * |
| Pisum sativum | Shoot | -- | 70.0 | -1.4 | * |
| Plantago ovata | Seed | -- | -- | * |