Data Views Exclude Ubiquitous Chemicals Activities: 273 Chemicals w/Activities: 35 All Chemicals: 42 CSV Excel PDF Show All Paginate Previous123 Click on column headings to sort the list on the column # Activity Chemical Part All parts ... Plant Root Low PPM High PPM StdDev *Reference 1 1 VERBASCOSE Root 27000.0 46000.0 * 77 77 ZINC Root -- 14.0 -0.45 * *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.