Data Views Total Plants: 2 CSV Excel PDF Click on column headings to sort table by that column Plant Part All Plant Shoot Low PPM High PPM StdDev *Reference Scutellaria lateriflora Shoot -- 53.0 * Ajuga chamaepitys Plant -- 36.2 Jim Duke's personal files. *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.