| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Lactuca sativa | Leaf | 0.09 | 870.0 | 3.0 | * |
| Taraxacum officinale | Plant | 58.0 | 330.0 | 1.6 | Chem. & Pharm. Bull. 38: 2205. |
| Artemisia vulgaris | Plant | 130.0 | 290.0 | 1.3 | Chem. & Pharm. Bull. 38: 2205. |
| Symphoricarpos orbiculatus | Stem | 0.57 | 264.0 | 2.8 | * |
| Boehmeria nivea | Plant | 110.0 | 230.0 | 0.7 | * |
| Brassica oleracea var. capitata l. | Leaf | 0.35 | 203.0 | 0.2 | * |
| Petasites japonicus | Plant | 170.0 | 200.0 | 0.4 | Chem. & Pharm. Bull. 38: 2205. |
| Nyssa sylvatica | Leaf | 0.5 | 182.0 | 0.1 | * |
| Asparagus officinalis | Shoot | 0.45 | 180.0 | 1.6 | * |
| Diospyros virginiana | Stem | -- | 162.0 | 1.3 | * |
| Rhus copallina | Leaf | 0.5 | 144.0 | -0.1 | * |
| Prunus serotina | Leaf | 0.6 | 144.0 | -0.1 | * |
| Lycopersicon esculentum | Fruit | -- | 140.0 | 2.4 | * |
| Juniperus virginiana | Shoot | 2.7 | 128.0 | 0.4 | * |
| Polystichum polyblepharum | Plant | 50.0 | 121.0 | -0.3 | * |
| Carya glabra | Shoot | 0.4 | 110.0 | 0.0 | * |
| Phaseolus vulgaris | Fruit | 0.1 | 105.0 | 1.6 | * |
| Sassafras albidum | Leaf | 1.0 | 102.0 | -0.3 | * |
| Rhus glabra | Stem | 0.2 | 100.0 | 0.4 | * |
| Momordica charantia | Fruit | -- | 100.0 | 1.5 | =ICMR(Indian Council of Medical Research).1976.Medicinal Plants of India.Vol.1.Indian Council of Med. Res.Cambridge Printing Works, New Delhi.487 pp;ICMR.1987.Medicinal Plants of India.Vol.2.Indian Council of Med. Res.Cambr. Printing Works,New Delhi.600pp |