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Total Plants: 538
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Plant Low PPM High PPM StdDev *Reference
Rosa laevigata Fruit -- 2830.0 0.3 *
Rosa canina Fruit 260.0 1390.0 -0.3 *
Rosmarinus officinalis Leaf 910.0 2825.0 -0.5 USDA's Ag Handbook 8 and sequelae)
Rosmarinus officinalis Plant 2142.0 2483.0 -0.5 USDA's Ag Handbook 8 and sequelae)
Rubia cordifolia Root -- 1870.0 -0.4 *
Rubus chamaemorus Fruit 270.0 1875.0 -0.1 *
Rubus idaeus Leaf 539.0 3190.0 -0.4 *
Rubus chingii Fruit -- 2740.0 0.3 *
Rubus idaeus Fruit 175.0 1400.0 -0.3 Revised USDA data received 1993.
Rumex crispus Root 822.0 3200.0 0.3 *
Rumex acetosa Leaf 460.0 4600.0 0.2 *
Ruscus aculeatus Root 707.0 2340.0 -0.1 *
Salix alba Bark 941.0 5600.0 2.6 *
Salvia officinalis Leaf 444.0 2830.0 -0.5 *
Salvia miltiorrhiza Root -- 3230.0 0.4 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.
Sambucus nigra Fruit 265.0 1635.0 -0.2 *
Santalum acuminatum Fruit 400.0 1715.0 -0.2 *
Sassafras albidum Leaf 990.0 6800.0 1.0 *
Sassafras albidum Stem 77.0 4760.0 -0.0 *
Schisandra chinensis Fruit 414.0 2760.0 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.