Data Views Total Plants: 3 CSV Excel PDF Total Activities: 2 Click on column headings to sort table by that column Plant Part All Root Seed Wood Low PPM High PPM StdDev *Reference Santalum album Root -- 95900.0 * Santalum album Wood 13500.0 61250.0 * Apium graveolens Seed 874.0 1150.0 Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980. *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.