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Total Plants: 268
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Plant Low PPM High PPM StdDev *Reference
Pinus sylvestris Leaf -- -- List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979.
Pinus elliottii Leaf -- -- CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses
Pinus walliciana Leaf -- -- ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes.
Pinus sylvestris Essential Oil -- -- *
Piper nigrum Fruit -- -- *
Piper nigrum Fruit Essent. Oil -- -- *
Piper auritum Leaf -- -- Tramil
Plectranthus barbatus Essential Oil 30000.0 239000.0 1.4 *
Plectranthus coleoides Shoot -- 120.0 -0.3 Buchbauer, G., Jorovetz, L., Wasicky, M. and Nikiforov, A. 1993. Volatile Constituents of the Headspace and Essential Oil of Plectranthus coleoides Marginatus (Labiatae). J. Ess. Oil Res. 5: 311-313.
Polygonum hydropiper Essential Oil -- -- *
Ptychopetalum olacoides Root Essent. Oil -- 5000.0 Uber Bucek, E., Fournier, G., Dadoun, H. 1987. Volatile Constituents of Ptychopetalum olacoides Root Oil. Planta Med. 53, 2: 231.
Pycnanthemum pycnanthemoides Shoot 78.0 116.0 -0.3 Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980.
Pycnanthemum incanum Shoot 33.0 57.0 -0.3 Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980.
Pycnanthemum tenuifolium Shoot 6.0 220.0 -0.2 Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980.
Pycnanthemum muticum Shoot 58.0 1350.0 0.9 Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980.
Pycnanthemum beadlei Shoot -- 42.0 -0.4 Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980.
Pycnanthemum setosum Shoot 160.0 248.0 -0.2 Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980.
Pycnanthemum montanum Shoot 21.0 24.0 -0.4 Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980.
Rosmarinus officinalis Shoot -- 180.0 -0.2 Tucker, A. O. and Maciarello, M. J. 1998. The essential oils of some rosemary cultivars. Flavor and Fragrance Journal, 1: 137-142. 1986.
Rosmarinus officinalis Shoot Essent. Oil -- 175000.0 1.4 *
*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.