Plants contain phytochemicals that can promote health and improve illness. Herbal drugs frequently fail to meet this standard, due to lack of scientific data to identify the plant. Thus, this study sets pharmacognostic characters of the Quisqualis indica leaves which will help for its identification and detection of adulteration/substitution. The quantitative microscopy leaf constants, length and width of trichomes, diameter of parenchyma cells, and calcium oxalate crystals were also analyzed. The physicochemical evaluation, for example ash value, extractive value, moisture content (LOD), etc. were performed. The preliminary phytochemical analysis of petroleum ether (60-80°C), chloroform, and ethanol discovered the occurrence of the phytoconstituents, for example alkaloids, flavonoids, carbohydrates, steroids, tannins, phenolic compounds, etc. Fluorescence behavior of these extracts and leaf powder was also studied in different solvents and reagents. This information may act as reference information and help in identification, authentication, and investigation of the plant material.