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Total Plants: 194
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Plant Low PPM High PPM StdDev *Reference
Origanum vulgare Plant 6.0 376.0 2.9 Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980.
Origanum vulgare Plant -- 120.0 0.4 Sezik, E., Tumen, G., Kirimer, N., Ozek, T., and Baser, K.H.C. 1993. Essential Oil Composition of Four Origanum vulgare Subspecies of Anatolian Origin. J. Ess. Oil Res., 5: 425-431.
Origanum majorana Essential Oil -- -- *
Origanum syriacum Shoot -- 20.0 -0.2 Fleisher, A. & Fleisher, Z. 1991. Chemical Composition of Origanum syriacum L. Essential Oil. J. Ess. Oil Res. 3: 121-123.
Origanum majorana Plant -- -- Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980.
Origanum vulgare Plant -- 24.0 -0.5 Sezik, E., Tumen, G., Kirimer, N., Ozek, T., and Baser, K.H.C. 1993. Essential Oil Composition of Four Origanum vulgare Subspecies of Anatolian Origin. J. Ess. Oil Res., 5: 425-431.
Origanum vulgare Shoot -- -- -0.4 Lagouri, V., Blekas, G., Tsimidou, M., Kokkini, S., and Boskou, D. 1993. Composition and Antioxidant Activity of Essential Oils from Oregano Plants Grown Wild in Greece. Z. Lebensm Unters Forsch 197: 20-23.
Origanum vulgare Shoot Essent. Oil -- 5800.0 -0.6 *
Panax ginseng Plant -- -- Leung, A. Y. and Foster, S. 1995. Encyclopedia of Common Natural Ingredients 2nd Ed. John Wiley & Sons, New York. 649 pp.
Panax quinquefolius Plant -- -- *
Panax ginseng Root Essent. Oil -- -- *
Perilla frutescens Shoot Essent. Oil -- 13000.0 1.1 Nguyen, X. D., La, D. M., Lu'u, D. C., Leclercq, P. A. 1995. Essential Oil Constituents from the Aerial Parts of Perilla frutescens (L.) Britton. J. Essent. Oil Res., 7(4): 429-432.
Petasites hybridus Rhizome -- -- List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979.
Pimenta racemosa Leaf -- 36.0 -0.4 *
Pimenta dioica Fruit -- 405.0 -0.4 *
Pimenta dioica Leaf Essent. Oil -- -- *
Pinus sylvestris Leaf Essent. Oil -- 4600.0 -0.6 *
Pinus strobus Leaf Essent. Oil -- -- *
Piper nigrum Fruit -- -- *
Piper nigrum Fruit Essent. Oil 2100.0 19500.0 -1.0 *
*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.