Spathodea campanulata P. Beauv is extensively used in Indian traditional and folklore medicines to cure
various human ailments. The preliminary phytochemical screening of the leaves revealed the presence of alkaloids,
flavonoids, saponins, tannins, steroids and terpenoids. In vitro antibacterial studies of the leaf extracts were carried
out on eight medically important bacterial strains using agar disc diffusion method. The antibacterial assay using
petroleum ether leaf extracts showed good inhibitory activity against Klebsiella pneumoniae and compared with
standard antibiotic Streptomycin