Data Views Total Plants: 3 CSV Excel PDF Total Activities: 3 Click on column headings to sort table by that column Plant Part Low PPM High PPM StdDev *Reference Ginkgo biloba Leaf 8.0 19000.0 * Araucaria bidwillii Leaf -- -- Wealth of India. Juniperus communis Leaf -- -- * *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.