01904nas a2200205 4500008004100000245008200041210006900123260001800192300001000210490000600220520126100226653003401487653002801521653003001549653001801579100002601597700002001623700001501643856004001658 2014 eng d00aPharmacognostic Investigation of Valeriana hardwickii Wall. A Threatened Herb0 aPharmacognostic Investigation of Valeriana hardwickii Wall A Thr c2nd July 2014 a33-360 v63 a

Aim:Valeriana hardwickii Wall. belongs to family Valerianaceae grown in high altitude areas of north west Himalaya to Bhutan. Traditionally, the roots of the plant are used to treat insomnia; however, no reports are available regarding any pharmacognostic work on this plant. Material and Methods: The study includes morphological, microscopic and preliminary phytochemical investigations of the roots and rhizome. Anatomical studies of roots and rhizome shows the presence of diagnostic characters such as thick walled cortex cells, annular xylem fi ber, pitted xylem vessel and rhizome hair. Results: The preliminary phytochemical screening of petroleum ether, dichlomethane and aqueous extract revealed the presence of tritepenoids, alkaloids, irridoidal glycosides and fl avanoids. The study was carried out as per WHO guidelines. Conclusion: The outcome of this work will help the researchers to differentiate V. hardwickii from the other species of valerian.

Key words: Pharmacognostic investigation, phytochemical screening, valerianaceae, Valeriana hardwickii Wall.

10aPharmacognostic investigation10aPhytochemical screening10aValeriana hardwickii Wall10avalerianaceae1 aBhandarkar, Anant, V.1 aShashidhara, S.1 aDeepak, M. uhttps://www.phcogj.com/article/1514