| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Apium graveolens | Seed Essent. Oil | -- | 1500.0 | * | |
| Cinnamomum verum | Bark Essent. Oil | 302000.0 | 765000.0 | * | |
| Cinnamomum verum | Root Bark | -- | -- | * | |
| Cinnamomum verum | Bark | 6000.0 | 30000.0 | 1.0 | * |
| Cinnamomum verum | Leaf Essent. Oil | 9700.0 | 31000.0 | * | |
| Cinnamomum verum | Root | -- | -- | * | |
| Cinnamomum aromaticum | Bark | 80.0 | 20550.0 | -1.0 | * |
| Cinnamomum verum | Stem Bark | -- | -- | * | |
| Cinnamomum verum | Essential Oil | -- | 800000.0 | * | |
| Cnicus benedictus | Plant | -- | -- | Wichtl, M. 1984. Teedrogen. Ein Handbuch fur Apotheker und Arzte. Wissenschaftliche Verlagsgesellscharft. mbH Stuttgart. 393 pp. | |
| Cnicus benedictus | Shoot | -- | -- | Jim Duke's personal files. | |
| Cnicus benedictus | Leaf | -- | -- | Jim Duke's personal files. | |
| Cnicus benedictus | Flower | -- | -- | Jim Duke's personal files. | |
| Commiphora myrrha | Essential Oil | -- | -- | * | |
| Commiphora myrrha | Resin, Exudate, Sap | -- | -- | Leung, A.Y., Encyclopedia of Common Natural Ingredients Used in Food, Drugs, and Cosmetics, John Wiley & Sons, New York, 1980. | |
| Ficus carica | Fruit | -- | -- | * | |
| Hyacinthus orientalis | Flower | 0.48 | 6.9 | 1.0 | * |
| Lavandula sp | Plant | -- | -- | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. | |
| Lycopersicon esculentum | Fruit | -- | -- | * | |
| Malus domestica | Fruit | -- | -- | * |