Pollen morphology of Koelreuteria paniculata L. (Sapindaceae) taxon, which is used for landscaping in Eskişehir province, were investigated by means of light and scanning electron microscopy microphotographs. The investigated Koelreuteria paniculata pollen grains are tricolporatae type and sphaeroidal shaped. Exine was seen to be tectatae-striatae-perforatae ornamentation. As a result of microscopic examinations, the distinctions between taxa were revealed statistically. Comparisons were performed between studied taxa will make contribution to taxonomy for classification of Koelreuteria paniculata taxon.
Keywords: Koelreuteria paniculata, pollen morphology, Eskişehir, Turkey