Poaceae family has 175 species for which we found uses in the works consulted. Only 1 species presents mild toxicity phenomena. In this list there are 116 species with fodder value, 84 decorative, 11 with edible seeds, 12 medicinal, 15 for veterinary medicine, 3 for cosmetics, 6 for biomass, 5 with uses in village households, 1 insecticide, 1 textile and 1 melliferous. In total there are 255 citations for uses. A dendrogram of uses can highlight the finding of new economic values. For the ecological economy we cite the following categories of uses: 53 species for ecological restoration, 37 for phytoremediation, 5 with ecological importance, 24 for vegetation cover and soil protection and 4 bioindicators. In total there are 123 citations for ecological valences.