The aim of the investigation carried out in 2006-2007 was to assess differences between 5 grass species and 5 species of plants belonging to meadow herbs in their ability to accumulate selenium. According to the results, among the grass species, the samples of Arrhenatherum elatuis L. had the highest average Se content (46 μg Se kg-1 d.m.), and the lowest average Se amount was found in Holcus lanatus L. (24 μg Se kg-1 d.m.). The content of Se in meadow weeds (70 μg Se kg-1 d.m.) was approximately twice as high as in grasses (32 μg Se kg-1 dm.). Among this group of plants, the highest Se accumulation occurred in Equisetum arvense L. (103 μg Se kg-1 dm.) and the lowest – in Taraxacum officinale (59 μg Se kg-1 dm.). Both in grasses and in meadow weeds, the Se content significantly depended on the amount of this element in soils. In the following species: Dactylis glomerata L., Arrhenatherum elatius L., Poa pratensis L. and Taraxacum officinale, the amount of accumulated Se was also conditioned by the soil’s abundance in organic and total C.