Abrus precatorius.Linn is a small diaceous creeper which belongs to the family Leguminosae and is distributed in through India. It is usually found on surroundings. The whole plant is medicinally important and many reports on claims to cure several diseases in traditional system of medicine folklore in particularly. Therefore in this background meticulous pharmacognostic study of leaves has been carried to establish the pharmacognostical standards. The parameters selected were microscopical studies, proximate analysis, fluorescence analysis, behavior of powder drug with different chemical reagents and preliminary phytochemical screening. In physico-chemical evaluation the ash values and extractive values were studied. Fluorescence analysis performed showed the wide range of fluorescence colors for the crude powder as well as the extracts. Behavior of powder drug with different chemical reagents showed the different colors. The powder of Abrus precatorius.Linn was successively extracted with petroleum ether, benzene, chloroform, ethanol and water. In the ethanol was the identification of best solvent. Preliminary phytochemical screening was carried out for ethanol extract give maximum chemical constituents and percentage yield were observed. Phytochemical test like preliminary phytochemical analysis and different chemical behavior analysis were performed. Through chemical test presence Alkaloids, flavonoids, steroids, cardiac glycosides, phenols and tannins were revealed. From the chemical behavior analysis presence of Quercetin, Gallic acid and its derivatives were identified.
