Data Views Total Plants: 2 CSV Excel PDF Click on column headings to sort table by that column Plant Part All Leaf Essent. Oil Plant Low PPM High PPM StdDev *Reference Eryngium foetidum Leaf Essent. Oil -- 210000.0 Tucker, A. O. and Debaggio, T. 2000. The Big Book of Herbs. Interweave Press, Inc. Loveland, CO. 688 pp. Eryngium foetidum Plant 50.0 100.0 * *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.