Data Views Total Plants: 2 CSV Excel PDF Total Activities: 3 Click on column headings to sort table by that column Plant Part All Leaf Silk Stigma Style Low PPM High PPM StdDev *Reference Zea mays Silk Stigma Style -- -- * Zea mays Leaf -- -- * *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.