Data Views Total Plants: 5 Total Activities: 2 CSV Excel PDF Click on column headings to sort table by that column Activity *Reference Irritant Merck 11th Edition Narcotic Merck 11th Edition *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.