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Dr. Duke's Phytochemical and Ethnobotanical Databases
U.S. Department of Agriculture

Chemical SILICA

Chemical ID
SILICA
Ubiquitous
No

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List of chemical plants.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Plant Name Plant Part Low Parts Per Million High Parts Per Million Standard Deviation Reference
Avena sativa Plant 36000.0 -0.6 Wealth of India.
Bixa orellana Plant 2200.0 -1.2 Duke, J. A. and duCellier, J. L. 1993. CRC Handbook of Alternative Cash Crops. CRC Press. Boca Raton, FL 33431. 536 pp. US $312.50.
Camellia sinensis Leaf 240.0 -1.4 *
Cichorium intybus Leaf 27800.0 0.9 *
Equisetum arvense Plant 50000.0 97000.0 0.5 *
Equisetum arvense Shoot 78000.0 1.1 Jim Duke's personal files.
Galeopsis segetum Shoot 6000.0 10000.0 -1.3 Bisset, N.G., ed. 1994. Herbal Drugs and Phytopharmaceuticals. CRC Press. Boca Raton, FL. 566 pp.
Linum usitatissimum Seed 322.0 608.0 -1.0 ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes.
Mangifera indica Seed 4100.0 1.0 *
Melaleuca leucadendra Wood 2000.0 9500.0 Duke, J. A. Writeups or information summaries on approximately 2,000 economic plants, USDA, ARS, Beltsville, MD 20705.
Musa x paradisiaca Fruit 238.0 -1.0 ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes.
Oryza sativa Plant 140000.0 1.3 *
Phyllanthus emblica Fruit 235.0 1163.0 -0.4 *
Piper nigrum Fruit 750.0 3900.0 1.4 ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes.
Pueraria montana Shoot 15000.0 52000.0 0.2 ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes.
Tephrosia purpurea Leaf 21900.0 0.4 *