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Total Plants: 7
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Plant Low PPM High PPM StdDev *Reference
Agathosma betulina Leaf 1800.0 3600.0 0.7 *
Barosma betulina Leaf 1800.0 3600.0 0.7 *
Mentha x piperita Leaf 0.01 0.1 -1.4 Duke, J. A. Writeups or information summaries on approximately 2,000 economic plants, USDA, ARS, Beltsville, MD 20705.
Mentha longifolia Shoot -- -- *
Mentha x rotundifolia Leaf -- -- Jim Duke's personal files.
Ribes nigrum Bud -- -- *
Agathosma betulina Leaf Essent. Oil -- -- *
*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.