The Cymbopogon martinii (Roxb.) plant is commonly known as palmarosa or rosa grass belonging to Poaceae. It is a perennial aromatic grass known for its rose-like aroma and rich in essential oil composition. The present investigation is made to study the ecological, morphological and anatomical studies in wild genotype of Cymbopogon collected from Devarayana Durga hill, Karnataka, India. The studies were made by screening the phytochemicals using methanol extract from the leaf by adopting standard qualitative tests. The screening of phytochemicals from the plant investigated serves as important steps to determine the biologically active chemical constituents present in the plant. The study showed that the methanol extract contains alkaloids, steroids, tannins, terpenoids, flavonoids, cardiac glycosides and phenols with the absence of saponins were absent. The quantitative determination of total phenols, total flavonoids and total terpenoids were made and found to be 0.011 mg. Tannic acid equivalent/gm, 0.508 mg quercetin/gm and 1.606 mg linalool/gm, respectively. There was higher terpenoid content, which followed by the flavonoid and phenol content. Further the thin layer chromatographic studies revealed the presence of terpenoid compounds.
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