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Total Plants: 490
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Plant Low PPM High PPM StdDev *Reference
Asimina triloba Fruit 25.0 111.0 0.3 *
Aspalathus linearis Shoot -- 120.0 -1.0 *
Asparagus officinalis Shoot 2.0 100.0 -1.0 *
Asparagus officinalis Root 0.2 2.0 -0.5 *
Asparagus lucidus Root -- 10.0 -0.4 *
Astragalus membranaceus Root -- -- *
Atractylodes ovata Rhizome 30.0 139.0 0.1 *
Atractylodes lancea Rhizome -- 39.0 -0.6 *
Avena sativa Seed 20.0 204.0 1.9 Jim Duke's personal files.*
Avena sativa Plant 0.1 0.5 -0.7 *
Averrhoa carambola Fruit 1.0 11.0 -0.3 USDA's Ag Handbook 8 and sequelae)
Barosma betulina Leaf -- 675.0 0.7 *
Belamcanda chinensis Rhizome -- 13.0 -0.8 Chen, H.C. and Lin, S.M. 1988. Determination of Mineral Elements in Certain Crude Drugs (Part 1), Kaohsiung J. Med. Sci., 4: 259-272.
Berberis vulgaris Bark -- 6.0 -0.6 *
Berberis vulgaris Root -- 6.0 -0.5 Pedersen, M. 1987. Nutritional Herbology. Pederson Publishing. Bountiful, Utah. 377 pp.
Berberis vulgaris Fruit -- 72.0 0.1 Jim Duke's personal files.
Bertholletia excelsa Seed -- 8.0 -0.6 USDA's Ag Handbook 8 and sequelae)
Beta vulgaris Root 3.0 90.0 0.5 *
Blechnum orientale Rhizome -- 28.0 -0.7 *
Bletilla striata Tuber -- 10.0 -0.6 Chen, H.C. and Lin, S.M. 1988. Determination of Mineral Elements in Certain Crude Drugs (Part 1), Kaohsiung J. Med. Sci., 4: 259-272.
*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.