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Total Plants: 210
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Plant Low PPM High PPM StdDev *Reference
Lepidium meyenii Root -- 15650.0 0.0 Taylor, Leslie. 2005. The Healing Power of Rainforest Herbs. SquareOne Publisher, Garden City Park, NY. 519 pp.
Lentinus edodes Fruit -- -- *
Lens culinaris Sprout Seedling 12580.0 41935.0 0.3 USDA's Ag Handbook 8 and sequelae)
Lens culinaris Seed 43500.0 49000.0 0.3 USDA's Ag Handbook 8 and sequelae)
Larrea tridentata Plant -- 13600.0 -0.6 *
Lactuca sativa Leaf 1820.0 30333.0 -0.4 *
Lablab purpureus Seed 1720.0 42815.0 0.0 *
Juglans regia Seed 28090.0 29155.0 -0.5 USDA's Ag Handbook 8 and sequelae)
Juglans nigra Seed 52130.0 54505.0 0.5 USDA's Ag Handbook 8 and sequelae)
Juglans cinerea Seed 60840.0 62942.0 0.9 *
Ipomoea batatas Root 1590.0 6360.0 -0.8 *
Ipomoea aquatica Leaf 2520.0 33465.0 -0.2 *
Huperzia spp Plant -- -- *
Hordeum vulgare Seed 32000.0 38000.0 -0.2 Jim Duke's personal files.*
Helianthus tuberosus Tuber -- 26493.0 1.0 Izadoost, M. & Robinson, T., Synergism & antagonism in the pharmacology of alkaloidal plants, pp 137-58 in Craker, L. & Simon, J., eds., Herbs, Spices & Medicinal Plants: Recent Advances in Botany, Horticulture & Pharmacology, v. 2, 1987, 255pp.
Harpagophytum procumbens Root -- -- *
Glycine max Seed 70680.0 77280.0 1.5 USDA's Ag Handbook 8 and sequelae)
Glycine max Shoot -- -- *
Glechoma hederacea Plant -- -- Oriental Materia Medica (three volumes by Dr. Hsu and collaborators)
Ginkgo biloba Seed 8360.0 22840.0 -0.8 USDA's Ag Handbook 8 and sequelae)
*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.