| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Petroselinum crispum | Plant | 285.0 | 396.0 | 1.6 | * |
| Brassica pekinensis | Leaf | 190.0 | 420.0 | -0.4 | * |
| Cichorium endivia | Shoot | 140.0 | 240.0 | -0.8 | * |
| Peucedanum decursivum | Plant | 100.0 | 130.0 | -0.1 | * |
| Erythroxylum coca | Leaf | 97.0 | 104.0 | -1.5 | * |
| Boehmeria nivea | Plant | 90.0 | 118.0 | -0.2 | * |
| Taraxacum officinale | Plant | 64.0 | 120.0 | -0.2 | Chem. & Pharm. Bull. 38: 2205. |
| Allium cepa | Bulb | 57.0 | 162.0 | * | |
| Glechoma hederacea | Plant | 51.0 | 110.0 | -0.3 | Chem. & Pharm. Bull. 38: 2205. |
| Petasites japonicus | Plant | 36.0 | 160.0 | 0.1 | Chem. & Pharm. Bull. 38: 2205. |
| Syzygium aromaticum | Fruit | 30.0 | 60.0 | -0.1 | Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980. |
| Syzygium aromaticum | Flower | 30.0 | 60.0 | * | |
| Artemisia vulgaris | Plant | 28.0 | 50.0 | -0.7 | Chem. & Pharm. Bull. 38: 2205. |
| Polystichum polyblepharum | Plant | 20.0 | 60.0 | -0.6 | * |
| Quercus rubra | Stem | 20.0 | 330.0 | -0.4 | * |
| Carya glabra | Shoot | 20.0 | 1100.0 | 1.7 | * |
| Asparagus officinalis | Shoot | 19.0 | 200.0 | -0.9 | * |
| Quercus velutina | Stem | 16.0 | 186.0 | -1.0 | * |
| Beta vulgaris | Root | 16.0 | 70.0 | -1.0 | * |
| Fallopia japonica | Plant | 15.0 | 120.0 | -0.2 | Chem. & Pharm. Bull. 38: 2205. |