Data Views Total Plants: 2 CSV Excel PDF Click on column headings to sort table by that column Plant Part All Flower Leaf Low PPM High PPM StdDev *Reference Viola odorata Flower -- -- * Peumus boldus Leaf 60.0 75.0 CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses *Unless otherwise noted all references are to Duke, James A. 1992. Handbook of phytochemical constituents of GRAS herbs and other economic plants. Boca Raton, FL. CRC Press.