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Flavonoids of 17 species of Euphorbia (Euphorbiaceae) in Iran

Euphorbia is one of the largest genus in Euphorbiaceae with more than 2000 species in the world and about 100 species in Iran. Flavonoids characters of 17 collected Euphorbia species from different parts of Markazi Province, Iran area were studied. Aqueous-ethanolic extracts of leaves were examined to practice flavonoid detection, isolation, and identification by 2-Dimensional Paper Chromatography (2-DPC), Thin Layer Chromatography (TLC), and available standard flavonoids. Voucher specimens of each sample were prepared for reference as herbarium vouchers. Studies of leaf flavonoids showed some phytochemical characters such as total number of flavonoids, kaempferol, quercetin, myricetin, flavone, and dihydroflavonol glycoside are valuable for chemotaxonomy and their usage.