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Total Plants: 28
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Plant Low PPM High PPM StdDev *Reference
Liquidambar styraciflua Leaf 0.08 24.6 2.3 *
Rhus copallina Stem 0.05 18.0 2.2 *
Brassica oleracea var. capitata l. Leaf 0.19 8.7 0.4 USDA's Ag Handbook 8 and sequelae)
Zea mays Seed 0.02 4.5 3.3 *
Diospyros virginiana Leaf 0.1 1.0 -0.5 *
Carya ovata Shoot 0.05 0.9 0.9 *
Lactuca sativa Leaf 0.036 0.87 -0.5 *
Liquidambar styraciflua Stem 0.04 0.84 -0.4 *
Carya glabra Shoot 0.04 0.77 0.5 *
Rhus copallina Leaf 0.05 0.67 -0.5 *
Prunus serotina Leaf 0.05 0.67 -0.5 *
Diospyros virginiana Stem 0.04 0.38 -0.5 *
Nyssa sylvatica Stem 0.03 0.31 -0.5 *
Nyssa sylvatica Leaf 0.05 0.27 -0.6 *
Prunus serotina Stem -- 0.27 -0.5 *
Symphoricarpos orbiculatus Stem 0.08 0.26 -0.5 *
Bertholletia excelsa Seed -- 0.2 -0.2 *
Pinus echinata Shoot 0.03 0.13 -1.4 *
Cocos nucifera Seed -- 0.1 -0.3 Furr, A.K., et al. 1979
Carya ovata Seed -- 0.1 -0.3 *
*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.