Plant | Low PPM | High PPM | StdDev | *Reference | |
---|---|---|---|---|---|
Crocus sativus | Silk Stigma Style | -- | -- | Watt, J.M. and Breyer-Brandwijk, M.G. 1962. The Medicinal and Poisonous Plants of Southern and Eastern Africa. E. & S. Livingstone, Ltd. Edinburg & London. 1457 pp. |