| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Armoracia rusticana | Root | 0.4 | 2.0 | -0.3 | * |
| Asparagus officinalis | Root | -- | -- | * | |
| Astragalus membranaceus | Root | 3.2 | 20.0 | -0.3 | * |
| Avena sativa | Plant | 4.0 | 18.3 | -0.4 | * |
| Barosma betulina | Leaf | -- | 43.0 | -0.3 | * |
| Berberis vulgaris | Root | -- | 2.3 | -0.3 | Pedersen, M. 1987. Nutritional Herbology. Pederson Publishing. Bountiful, Utah. 377 pp. |
| Berberis vulgaris | Bark | -- | 2.3 | -0.5 | * |
| Bertholletia excelsa | Seed | -- | 1770.0 | 1.6 | USDA's Ag Handbook 8 and sequelae) |
| Beta vulgaris | Root | 1.0 | 83.0 | 0.0 | ACTA AGRIC SCAND SUPPL 22: 1980 |
| Brassica oleracea var. botrytis l. | Leaf | 1.0 | 90.0 | -0.1 | * |
| Brassica rapa | Root | 120.0 | 1200.0 | 5.2 | * |
| Brassica napus var. napobrassica | Root | 1.0 | 30.0 | -0.2 | ACTA AGRIC SCAND SUPPL 22: 1980 |
| Brassica oleracea var. italica | Leaf | 1.0 | 90.0 | -0.1 | ACTA AGRIC SCAND SUPPL 22: 1980 |
| Brassica oleracea var. capitata l. | Leaf | 1.0 | 25.0 | -0.3 | ACTA AGRIC SCAND SUPPL 22: 1980 |
| Brassica oleracea var. botrytis l. | Flower | 2.0 | 125.0 | 2.2 | * |
| Bupleurum chinense | Root | -- | -- | * | |
| Capsicum annuum | Fruit | -- | -- | * | |
| Capsicum frutescens | Fruit | -- | -- | * | |
| Carica papaya | Fruit | 1.2 | 10.0 | -0.6 | * |
| Carthamus tinctorius | Flower | 0.7 | 4.7 | -0.6 | * |