| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Pimenta dioica | Leaf | 1173.0 | 1399.0 | -0.7 | * |
| Pimpinella anisum | Seed | 4400.0 | 4862.0 | -0.1 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Pimpinella anisum | Fruit | -- | 4862.0 | 0.5 | * |
| Pinus gerardiana | Seed | 925.0 | 1000.0 | -1.2 | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. |
| Pinus cembroides | Seed | 5150.0 | 6235.0 | 0.2 | USDA's Ag Handbook 8 and sequelae) |
| Pinus echinata | Shoot | 306.0 | 1512.0 | -0.9 | * |
| Pinus edulis | Seed | 145.0 | 590.0 | -1.3 | USDA's Ag Handbook 8 and sequelae) |
| Pinus pinea | Seed | 5080.0 | 5445.0 | 0.0 | USDA's Ag Handbook 8 and sequelae) |
| Piper auritum | Leaf | 490.0 | 2920.0 | -0.4 | * |
| Piper nigrum | Fruit | 700.0 | 2040.0 | -0.4 | * |
| Piper betel | Leaf | 400.0 | 2740.0 | -0.4 | * |
| Pistacia vera | Seed | 4300.0 | 5280.0 | -0.0 | * |
| Pisum sativum | Seed | 1038.0 | 6250.0 | 0.2 | * |
| Pisum sativum | Plant | 1800.0 | 6400.0 | 1.4 | * |
| Pisum sativum | Fruit | 530.0 | 5240.0 | 0.6 | * |
| Plantago major | Seed | 180.0 | 600.0 | -1.3 | * |
| Plantago psyllium | Seed | 137.0 | 630.0 | -1.2 | * |
| Plantago psyllium | Hull Husk | -- | 578.0 | -1.0 | * |
| Platonia insignis | Fruit | 360.0 | 1300.0 | -0.6 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Platycodon grandiflorum | Root | 1890.0 | 2493.0 | -0.2 | * |