| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Melaleuca bracteata | Leaf | 40.0 | 100.0 | Guenther, E., The Essential Oils, 6 volumes, D. van Nostrand, New York, 1948-1952. | |
| Cinnamomum verum | Bark | 26.0 | 104.0 | * | |
| Cinnamomum aromaticum | Bark | -- | -- | Bisset, N.G., ed. 1994. Herbal Drugs and Phytopharmaceuticals. CRC Press. Boca Raton, FL. 566 pp. | |
| Cinnamomum verum | Bark Essent. Oil | -- | -- | * | |
| Cinnamomum verum | Leaf Essent. Oil | -- | 6000.0 | * | |
| Cinnamomum verum | Root Bark | -- | -- | * | |
| Hyacinthus orientalis | Flower | -- | -- | * | |
| Cinnamomum verum | Stem Bark | -- | -- | * | |
| Vanilla planifolia | Fruit | -- | -- | * | |
| Citrullus lanatus | Fruit Juice | -- | -- | * | |
| Pimpinella anisum | Seed Essent. Oil | -- | -- | * | |
| Ficus carica | Fruit | -- | -- | * | |
| Cinnamomum verum | Leaf | -- | -- | Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980. | |
| Ephedra sinica | Shoot | -- | 18.0 | * | |
| Narcissus tazetta | Flower | -- | -- | * | |
| Rubus idaeus | Plant | -- | -- | * | |
| Cinnamomum aromaticum | Plant | -- | -- | * |