The leaflets of all the species of genus Oxytropis DC. (Leguminosae) in Turkey have been studied by using scanning electron microscope to investigate stomata, trichome and leaf surface morphology. All taxa have amphistomatic leaflets. Four taxa have mesomorphic stomata, the others are xeromorphic. Leaflets adaxial surface have dense epicuticular wax. O. engizekensis Duman et Vural and O. persica Boiss. have subbifurcate trichome, the others are simple.