"Plant","Part","Low PPM","High PPM","StdDev","Reference"
"Acacia farnesiana","Flower",,,,"Rizk, A.F.M. and Al-Nowaihi, A.S., The Phytochemistry of the Horticultural Plants of Qatar, Scientific and Applied Research Centre, University of Qatar."
"Agastache rugosa","Tissue Culture",,,,"Jim Duke's personal files."
"Agastache rugosa","Essential Oil",,"30000.0","1.0","Jim Duke's personal files."
"Agastache foeniculum","Plant",,"1.0",,"Mazza, G. and Kiehn, F.A. 1992. Essential Oil of Agastache foeniculum, A Potential Source of Methyl Chavicol. J. Ess. Oil Res., 4: 295-299."
"Agastache rugosa","Shoot",,,,"Jim Duke's personal files."
"Artemisia dracunculus","Essential Oil",,,,"--"
"Boswellia sacra","Essential Oil",,,,"Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980."
"Chrysanthemum x morifolium","Flower",,,,"Wealth of India."
"Citrullus colocynthis","Petiole",,,,"--"
"Cuminum cyminum","Seed",,"837.0","-0.9438488054306591","Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980."
"Cuminum cyminum","Fruit",,"837.0","0.3007182102385518","--"
"Ephedra sinica","Shoot",,"1.0",,"--"
"Foeniculum vulgare","Fruit","1.0","1080.0","1.0463766295035322","--"
"Foeniculum vulgare","Essential Oil",,"8200.0","-1.0","Jim Duke's personal files."
"Foeniculum vulgare","Plant",,,,"Jim Duke's personal files."
"Foeniculum vulgare","Seed Essent. Oil",,,,"Jim Duke's personal files."
"Foeniculum vulgare","Seed","1.0","1080.0","-0.44014032874035824","--"
"Hibiscus sabdariffa","Leaf",,,,"Chemical Constituents of Oriental Herbs (3 diff. books)"
"Hibiscus sabdariffa","Fruit",,,,"Chemical Constituents of Oriental Herbs (3 diff. books)"
"Mentha arvensis var. piperascens","Shoot",,,,"Jim Duke's personal files."
"Myrrhis odorata","Plant",,,,"Gruenwald, J. et al. 1998. PDR for Herbal Medicine. 1st ed. Medical Economics Co., Montvale, NJ. 1244 pp. (abbreviated as PHR or Physicians Herbal Reference in my mind)"
"Pimpinella anisum","Essential Oil",,,,"--"
"Pimpinella anisum","Seed","140.0","1960.0","1.383989134171019","--"
"Pimpinella anisum","Fruit",,"300.0","-1.3470948397420839","--"
"Pinus mugo","Leaf",,,,"Guenther, E., The Essential Oils, 6 volumes, D. van Nostrand, New York, 1948-1952."
"Pinus sylvestris","Leaf",,,,"List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979."
"Pycnanthemum pilosum","Leaf",,,,"Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980."
"Pycnanthemum pilosum","Flower",,,,"Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980."
"Syringa vulgaris","Flower",,,,"List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979."
"Tabebuia impetiginosa","Stem Bark",,,,"--"
"Tagetes filifolia","Leaf Essent. Oil",,,,"Zygadlo, J. S., Guzman, C. A., Grosso, N. R. 1994. Antifungal Properties of the Leaf Oils of Tagetes Minuta L. and T. filifolia Lag. J. Essent. Oil Res. 6 6: 617-621. Cat Quim Org Fac Cien Exact Univ Nacion Cordoba Cordoba  5000 Argentina."
"Tagetes lucida","Shoot",,,,"Bicchi, C., Fresia, M., Rubiolo, P., Monti, D., Franz, C., Goehler, I. 1997. Constituents of Tagetes lucida Cav. ssp. lucida essential oil. Flavor & Fragrance, 12(1): 47-52."
"Vaccinium macrocarpon","Fruit",,,,"--"
"Vanilla tahitensis","Fruit",,,,"--"
"Vanilla planifolia","Fruit",,,,"--"