The herbal market in this era is growing very fast and many commercial manufacturers produce either classical or patent Ayurvedic formulations by using the raw drugs available in the market. To maintain the quality standards they have to use only genuine drug which should not be adulterated or substituted. Complete phytochemical investigation of medicinal herbs helps in identification of genuine drug; with this aim this study is planned. Clerodendrum serratum (Linn.) Moon, (Bharangi) belongs to family Verbenaceae, is being used for the treatment of respiratory disorders since long time. Nowadays many drugs are available in market with the name of Bharangi and there are also some controversial views about the identification of Bharangi. Here an attempt is made to study the plant Pharmacognostically; the part taken for study is the root. Diagnostic features of root and root powder were also worked out and the details were presented. This is an important step towards the standardization of this drug. 

Key words: Clerodendrum; Genuine drug; Root; Adulterated.