Data Views Total Plants: 393 Show all rows. Paginate rows. Click on column headings to sort table by that column Plant Part All parts ... Aril Bark Bud Bulb Flower Fruit Herb Hull Husk Leaf Mesocarp Plant Resin, Exudate, Sap Rhizome Root Seed Shoot Silk Stigma Style Sprout Seedling Stem Tuber Cr Pt Low PPM High PPM StdDev *Reference *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.