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Total Plants: 54
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Plant Low PPM High PPM StdDev *Reference
Coptis chinensis Rhizome 40000.0 90000.0 0.9 *
Coptis japonica Rhizome 40000.0 70000.0 -0.3 *
Coptis spp Rhizome 40000.0 90000.0 0.9 *
Berberis vulgaris Root Bark 25000.0 80000.0 *
Berberis vulgaris Stem Bark 20000.0 25000.0 1.0 Jim Duke's personal files.
Xanthorhiza simplicissima Root 12000.0 13000.0 -0.8 List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979.
Phellodendron amurense Bark 8300.0 10000.0 -1.0 *
Berberis vulgaris Root 4000.0 64800.0 1.1 *
Berberis vulgaris Stem 1600.0 28900.0 Jim Duke's personal files.
Hydrastis canadensis Root 1385.0 60000.0 0.9 *
Hydrastis canadensis Rhizome -- 50000.0 -1.5 *
Hydrastis canadensis Shoot -- -- *
Chelidonium majus Plant -- -- *
Berberis vulgaris Bark -- 45000.0 1.0 Jim Duke's personal files.
Berberis vulgaris Flower -- 6600.0 Jim Duke's personal files.
Zanthoxylum americanum Plant -- -- *
Berberis vulgaris Leaf -- 3000.0 1.0 Jim Duke's personal files.
Argemone mexicana Plant -- 410.0 *
Eschscholzia californica Shoot -- -- List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979.
Andira inermis 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.