| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Hordeum vulgare | Seed | 20.0 | 30.0 | -0.4 | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. |
| Erythroxylum novogranatense | Leaf | 19.0 | 22.0 | -0.4 | * |
| Vigna aconitifolia | Seed | 19.0 | 21.0 | -0.7 | * |
| Anemarrhena asphodeloides | Rhizome | 19.0 | 27.0 | -0.3 | * |
| Phaseolus vulgaris | Seed | 19.0 | 50.0 | 0.1 | * |
| Erythroxylum coca | Leaf | 18.0 | 29.0 | -0.3 | * |
| Solanum melongena | Fruit | 18.0 | 25.6 | -0.1 | * |
| Phyllanthus emblica | Fruit | 18.0 | 89.0 | 1.8 | * |
| Scutellaria baicalensis | Root | 17.0 | 18.0 | -0.3 | * |
| Macadamia spp | Seed | 17.0 | 18.0 | -0.8 | USDA's Ag Handbook 8 and sequelae) |
| Erythroxylum novogranatense | Leaf | 16.0 | 33.0 | -0.3 | * |
| Achyranthes bidentata | Root | 16.0 | 51.0 | 1.2 | * |
| Helianthus tuberosus | Tuber | 16.0 | 64.0 | 1.9 | Bonness, M. S., Promising new drugs from plants: poisons that heal, Herbarist, #56, 1990, 59-68 |
| Paeonia lactiflora | Root | 15.0 | 24.0 | -0.0 | * |
| Alocasia macrorrhiza | Root | 15.0 | 51.0 | 1.2 | * |
| Pinellia ternata | Tuber | 14.0 | 18.0 | -0.6 | * |
| Lens culinaris | Sprout Seedling | 14.0 | 54.0 | 0.9 | USDA's Ag Handbook 8 and sequelae) |
| 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 | Seed | 13.0 | 20.0 | -0.7 | * |
| Platycodon grandiflorum | Root | 13.0 | 18.0 | -0.3 | * |