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Pharmacognostical Evaluation of Leucas aspera Link.
Vartika Rai,Manisha Agarwal,A.K. Agnihotri,S. Khatoon,A.K.S. Rawat,S. Mehrotra 한국생약학회 2005 Natural Product Sciences Vol.11 No.2
Leucas aspera Link. (Lamiaceae) is an important medicinal plant in indigenous systems of medicinecomunities find diverse medicinal properties. It is used as antipyretic, stimulant, expectorant and diaphoreticdrug. The present communication deals with the detailed pharmacognostical evaluation of whole plant of L.aspera collected from five different geographical zones of the country-Uttar Pradesh, Orissa, Karnataka, WestBengal and Gujarat. The botanical characters and TLC fingerprint profile of all the samples were quite similar butsome variations were observed in physicochemical parameters. However, some microscopical characters and TLCprofile can be used as diagnostic characters for identification of , for example amphistomachic leavesand two types of trichomes-abundant, non glandular, uniseriate, 1-3 celled and few glandular, 2-5 celled stalk withrounded tip. Presence of some components at Rfs-0.56, 0.65 and 0.76 under UV 366 and at Rfs-0.31, 0.43, 0.60,0.76 and 0.82 under visible light after derivetization in TLC profile may also be used as diagnostic character.