| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Aesculus hippocastanum | Bark | -- | -- | List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979. | |
| Ailanthus altissima | Plant | -- | -- | * | |
| Allium ampeloprasum | Plant | -- | -- | * | |
| Althaea officinalis | Shoot | -- | -- | * | |
| Althaea officinalis | Root | -- | -- | * | |
| Althaea officinalis | Leaf | -- | -- | * | |
| Althaea officinalis | Flower | -- | -- | * | |
| Anethum graveolens | Seed Essent. Oil | -- | -- | * | |
| Anethum graveolens | Seed | -- | -- | * | |
| Anethum graveolens | Fruit | -- | -- | * | |
| Anethum graveolens | Root | -- | -- | * | |
| Anethum graveolens | Shoot | -- | 2.0 | * | |
| Angelica dahurica | Root | -- | -- | * | |
| Angelica archangelica | Root | -- | -- | * | |
| Angelica sinensis | Root | -- | -- | Chemical Constituents of Oriental Herbs (3 diff. books) | |
| Angelica archangelica | Tissue Culture | -- | -- | * | |
| Apium graveolens | Plant | -- | -- | * | |
| Apium graveolens | Leaf | -- | -- | * | |
| Artemisia dracunculus | Shoot | -- | -- | * | |
| Artemisia abrotanum | Plant | -- | -- | * |