Plant | Low PPM | High PPM | StdDev | *Reference | |
---|---|---|---|---|---|
Dendrobium nobile | Stem | -- | 53.0 | -1.2 | * |
Chamaemelum nobile | Flower | -- | 52.0 | -0.2 | * |
Brassica oleracea var. sabellica l. | Leaf | 8.0 | 50.0 | -0.4 | * |
Viburnum opulus | Bark | -- | 49.0 | -0.3 | Pedersen, M. 1987. Nutritional Herbology. Pederson Publishing. Bountiful, Utah. 377 pp. |
Geranium thunbergii | Plant | -- | 49.0 | -0.3 | * |
Brassica oleracea var. botrytis l. | Flower | 1.5 | 48.0 | -0.2 | * |
Origanum vulgare | Plant | -- | 47.0 | -0.4 | USDA's Ag Handbook 8 and sequelae) |
Juglans nigra | Seed | 30.0 | 46.0 | -0.1 | * |
Pinellia ternata | Tuber | 11.0 | 46.0 | -0.2 | * |
Rheum palmatum | Rhizome | 19.0 | 46.0 | -0.5 | * |
Phoenix dactylifera | Fruit | 3.0 | 45.0 | -0.1 | * |
Colocasia esculenta | Leaf | -- | 45.0 | -0.4 | * |
Brassica oleracea var. capitata l. | Leaf | 1.0 | 45.0 | -0.4 | * |
Mentha arvensis var. piperascens | Plant | -- | 44.0 | -0.4 | Suziki, A., Morimoto, I., and Okitzu, T., Elution of Metals from Crude Drugs, Shoykugaku Zasshi 36(3):190-195. |
Castanea dentata | Seed | 19.0 | 44.0 | -0.1 | * |
Psophocarpus tetragonolobus | Seed | 34.0 | 44.0 | -0.1 | * |
Panax japonicus | Rhizome | -- | 43.0 | -0.6 | * |
Tetrapanax papyrifera | Pith | -- | 43.0 | -1.0 | * |
Sophora angustifolia | Root | 28.0 | 42.0 | -0.0 | * |
Magnolia denudata | Flower | -- | 42.0 | -0.2 | * |