| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Althaea officinalis | Leaf | -- | 200.0 | -1.0 | Wealth of India. |
| Althaea officinalis | Root | 54.0 | 2000.0 | -0.6 | * |
| Althaea officinalis | Flower | -- | 200.0 | -0.4 | Wealth of India. |
| Ammi visnaga | Seed | 200.0 | 300.0 | -0.5 | * |
| Amomum xanthioides | Seed | 15000.0 | 30000.0 | -0.2 | * |
| Amomum compactum | Seed | -- | 24000.0 | -0.2 | Duke, J. A. and duCellier, J. L. 1993. CRC Handbook of Alternative Cash Crops. CRC Press. Boca Raton, FL 33431. 536 pp. US $312.50. |
| Anaphalis margaritacea | Plant | -- | -- | * | |
| Anethum graveolens | Root | 300.0 | 500.0 | -0.6 | Rizk, A.F.M., The Phytochemistry of the Flora of Qatar, Scientific and Applied Research Centre, University of Qatar, Kingprint, Richmond, UK, 1986. |
| Anethum graveolens | Shoot | -- | -- | * | |
| Anethum graveolens | Plant | 5600.0 | 15000.0 | 0.4 | * |
| Anethum graveolens | Seed | 12000.0 | 77000.0 | 0.4 | * |
| Anethum graveolens | Leaf | 1640.0 | 15000.0 | 0.3 | * |
| Anethum graveolens | Fruit | 12000.0 | 77000.0 | 0.7 | * |
| Angelica sinensis | Root | 880.0 | 7000.0 | -0.3 | * |
| Angelica sinensis | Tissue Culture | -- | -- | Jim Duke's personal files. | |
| Angelica archangelica | Seed | 2000.0 | 38000.0 | -0.1 | * |
| Angelica archangelica | Root | 1000.0 | 19000.0 | 0.2 | * |
| Angelica sinensis | Shoot | -- | -- | Jim Duke's personal files. | |
| Anisochilus carnosus | Leaf | -- | 11900.0 | 0.0 | Wealth of India. |
| Anisomeles malabarica | Flower | -- | 700.0 | -0.4 | Wealth of India. |