Data Views Total Plants: 22 CSV Excel PDF , Previous12 Show all rows. Paginate rows. Click on column headings to sort table by that column Plant Part All Bark Flower Fruit Leaf Plant Root Root Essent. Oil Seed Seed Coat Seed Oil Shoot Tuber Low PPM High PPM StdDev *Reference Vanilla planifolia Fruit -- -- * Viburnum prunifolium Bark -- -- * *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.