Data Views Total Plants: 3 CSV Excel PDF Click on column headings to sort table by that column Plant Part All Essential Oil Leaf Seed Low PPM High PPM StdDev *Reference Melaleuca cajuputi Leaf -- 770.0 * Melaleuca alternifolia Essential Oil -- 20300.0 * Elettaria cardamomum Seed -- -- * *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.