Koš wetlands are terrain depressions which are formed by lowering of undermined land in area of Nováky mine i n Hornonitrianska basin. They are subsequently flooded by precipitation and groundwater what causes a creation of waterlogged and flooded areas of different size. It’s a wetland area with supraregional importance that highly helped with rising biodiversity level of the region. This paper brings floristic and phytocenological data from research realized on 20 research fields at 6 wetlands in growing season 2014. We confirmed occurrence of 12 associations which belong to 7 vegetation classes. Research fields were also analysed by using Ellenber g indicator values. Overall, ap pearance of 120 vascular plant species was confirmed among which are 3 endangered species and also 5 alien plant species.