Plant | Low PPM | High PPM | StdDev | *Reference | |
---|---|---|---|---|---|
Citrus limon | Essential Oil | -- | -- | Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980. | |
Coriandrum sativum | Leaf | -- | 168.0 | Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980. | |
Rheum palmatum | Rhizome | -- | 0.5 | * |