| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Mentha x piperita | Leaf | -- | -- | * | |
| Berberis vulgaris | Bark | -- | -- | * | |
| Artemisia cina | Plant | -- | -- | * | |
| Phytelephas aequatorialis | Mesocarp | 13.0 | 37.0 | KOZIOL & PEDERSEN. 1993. PHYTELEPHAS AEQUATORIALIS(ARECACEAE) IN HUMAN AND ANIMAL NUTRITION. ECON. BOT. 47:401-307. | |
| Myristica fragrans | Aril | -- | 20.0 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses | |
| Trifolium pratense | Flower | -- | -- | * | |
| Achillea millefolium | Plant | -- | -- | * | |
| Nepeta cataria | Plant | -- | -- | * | |
| Symphytum officinale | Leaf | -- | -- | * | |
| Carica papaya | Fruit | -- | -- | * | |
| Lygodium japonicum | Pollen Or Spore | -- | 23.0 | * | |
| Juglans nigra | Fruit | -- | -- | * | |
| Cnicus benedictus | Plant | -- | -- | * | |
| Passiflora incarnata | Flower | -- | -- | * | |
| Rheum rhabarbarum | Pt | 1.0 | 46.0 | * | |
| Chrysanthemum parthenium | Plant | -- | -- | * | |
| Althaea officinalis | Root | -- | -- | * | |
| Avena sativa | Plant | -- | -- | * | |
| Nasturtium officinale | Plant | -- | -- | * | |
| Cichorium intybus | Root | -- | -- | * |