| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Parthenium hysterophorus | Plant | -- | -- | ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes. | |
| Heliotropium indicus | Plant | -- | -- | * | |
| Dodonaea viscosa | Leaf | -- | 200.0 | -1.0 | * |
| Abies spectabilis | Leaf | -- | 1600.0 | 1.0 | Wealth of India. |
| Gleditsia triacanthos | Flower | -- | 2000.0 | * | |
| Lepidium sativum | Seed | 1900.0 | 2015.0 | * |