In this study, the morphological and genetic diversity of European Poa pratensis genebank material was analysed and was tested whether the molecular-genetic AFLP-techniques and the classical morphological and phenotypical descriptions complement each other reasonably, and if there are geographic patterns in the morpho-phenotypical and genetic variability. Another part of the study concerned the determination of the modes of Poa reproduction and their variability in the examined accessions. The morphological and phenotypical characterization data led to a grouping of the accessions coming from the same geographical areas. The clearest distances could be found between the European material and the accessions from three non-European countries. It was shown that the location factors influence the expression of the morphological and phenotypical traits to a considerable extent - most of the scored traits showed significantly different expressions according to the geographic areas. The results of the determinations of the reproduction mode show that different pathways in the same Poa pratensis plant are possible. Obligatory meiotic parthenogenetic and apomeiotic sexual types were not found. The analysis the AFLP data showed a less clear grouping of the accessions according to the geographical origins. Therefore, was assumed that the propagation history of the examined accessions plays an important role in the clustering. The highest genetic similarities were found within the central European countries. The accessions from Southern Europe were less similar. The material from the northern islands, which is less related to the continental gene pool, shows the least genetic similarities.