| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Morus alba | Fruit | 1.0 | 14.0 | 1.9 | * |
| Echinacea purpurea | Root | 3.0 | 12.0 | 1.7 | * |
| Cucurbita pepo | Fruit | 1.1 | 13.1 | 1.7 | USDA's Ag Handbook 8 and sequelae) |
| Cajanus cajan | Seed | 1.7 | 8.0 | 1.7 | * |
| Triticum aestivum | Seed | 0.7 | 8.0 | 1.7 | * |
| Perilla frutescens | Seed | 1.0 | 8.0 | 1.7 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Eleocharis dulcis | Tuber | 0.2 | 9.0 | 1.7 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Asparagus officinalis | Shoot | 1.0 | 36.0 | 1.7 | * |
| Areca catechu | Seed | 6.9 | 7.9 | 1.7 | * |
| Phaseolus vulgaris | Sprout Seedling | 2.5 | 27.0 | 1.7 | USDA's Ag Handbook 8 and sequelae) |
| Curcuma longa | Rhizome | -- | 12.0 | 1.6 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Psophocarpus tetragonolobus | Seed | 1.0 | 7.7 | 1.6 | * |
| Calathea macrosepala | Flower | 1.0 | 13.0 | 1.6 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Lablab purpureus | Seed | 0.92 | 7.58 | 1.6 | * |
| Phaseolus vulgaris | Fruit | 1.0 | 12.0 | 1.5 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Luffa aegyptiaca | Fruit | 0.6 | 12.0 | 1.5 | * |
| Pourouma cecropiaefolia | Fruit | 2.2 | 12.0 | 1.5 | J Cell Biochem VOL. 22=1995 |
| Rumex crispus | Root | 3.0 | 10.8 | 1.5 | * |
| Myristica fragrans | Aril | 4.0 | 5.0 | 1.4 | CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses |
| Hordeum vulgare | Stem | 27.0 | 28.0 | 1.4 | * |