The Chlor oform ext r act of Tephrosia pumila ( Lam . ) Pers .rn(Leguminosae) revealed the presence of eight flavonoids .rnOut of these three flavonoids were isolated . The majorrncomponent was iden ified as he known praecansonernthat r equided structural revision based on l3C NMR andrnother spect r oscopic da a . Th . second componen wasrncharacter ized as a new isoflavune hat is given hernt il R l name pumi laisoflavone A.