| Plant | Low PPM | High PPM | StdDev | *Reference | |
|---|---|---|---|---|---|
| Albizia lebbeck | Flower | -- | -- | Wealth of India. | |
| Alnus glutinosa | Bark | -- | -- | * | |
| Aloe vera | Leaf | -- | -- | * | |
| Aloe vera | Plant | -- | -- | * | |
| Apocynum cannabinum | Root | -- | -- | * | |
| Arbutus unedo | Leaf | -- | -- | * | |
| Arctium lappa | Plant | -- | -- | Jim Duke's personal files. | |
| Arctium lappa | Leaf | -- | -- | * | |
| Arctostaphylos uva-ursi | Leaf | -- | -- | * | |
| Arctostaphylos uva-ursi | Plant | -- | -- | J.S. Glasby Dict.Pls Containing 2ndary Metabolite. 1991. | |
| Arundo donax | Leaf | -- | -- | * | |
| Aspidosperma quebracho-blanco | Bark | -- | -- | * | |
| Bidens pilosa | Plant | -- | 50.0 | Jim Duke's personal files. | |
| Caesalpinia pulcherrima | Flower | -- | -- | * | |
| Cajanus cajan | Root | -- | -- | Grenand, P., Moretti, C., and Jacquemin, H. 1987. Pharmacopees Traditionnelles en Guyane. l'ORSTROM, Paris. 569 pp. | |
| Calendula officinalis | Flower | -- | -- | * | |
| Camellia sinensis | Seed | -- | -- | * | |
| Camellia sinensis | Seed Oil | -- | -- | * | |
| Camellia japonica | Seed | -- | -- | Wealth of India. | |
| Capsicum annuum | Seed | -- | -- | * |