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Total Plants: 275
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Plant Low PPM High PPM StdDev *Reference
Helianthus annuus 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.
Hypericum perforatum Plant 1.0 18.0 -0.5 *
Hyptis suaveolens Shoot -- -- -0.5 Mallvarapu, G.R., Ramesh, S., Kaul, P.N., Bhattacharya, A.K., and Rao, B.R.R. 1993. The Essential Oil of Hyptis suaveolens (L.) Poit. J. Ess. Oil Res. 5: 321.
Hyptis suaveolens Shoot -- -- -0.5 Mallvarapu, G.R., Ramesh, S., Kaul, P.N., Bhattacharya, A.K., and Rao, B.R.R. 1993. The Essential Oil of Hyptis suaveolens (L.) Poit. J. Ess. Oil Res. 5: 321.
Hyptis suaveolens Plant -- 130.0 -0.3 Recently became Internat. J. Crude Drug Res. 28(1,2,3,4):1990, page 74.
Hyssopus officinalis Leaf 1.0 1880.0 0.7 *
Illicium verum Fruit -- 70.0 -0.1 *
Juniperus sabina Plant -- -- *
Juniperus communis Fruit 16.0 640.0 3.1 *
Laurus nobilis Leaf Essent. Oil -- -- *
Laurus nobilis Leaf 14.0 300.0 -0.2 *
Lavandula x intermedia Plant -- -- Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980.
Lavandula latifolia Plant 4.0 11.0 -0.5 Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980.
Lavandula x hybrida Shoot 1.0 9.0 -0.5 Tucker, A.O., Maciarello, M.J., Angell, S., Espaillat, J.R., and French, E.C. 1993. The Essential Oil of Lavandula x hybrida Balb. ex Ging., a Distinct Hybrid from L. x heterophylla Poir. (Labiatae). J. Ess. Oil Res. 5: 443-445.
Lepechinia calycina Plant -- 115.0 -0.3 Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980.
Levisticum officinale Root 1.0 10.0 -0.6 Lawrence, B.M., Essential Oils 1976-1977, Essential Oils 1978, Essential Oils 1979-1980.
Lindera benzoin Fruit 4.0 6.0 -0.4 *
Lindera benzoin Twig 7.0 9.0 *
Litsea glaucescens Shoot 60.0 75.0 -0.3 Tucker, et al, EB46(1):21-24.1992
Magnolia denudata Leaf -- -- *
*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.