(Drosera rotundifolia)-In The Mohos Peat Bog The Mohos Peat-bog lies in the northen section of the CSOMAD, 100m higher than Lake St. Ana. It is four times bigger than its smaller sibling. The swamp-turned lake became an oligotrophic bag by the effects four successive glacial periods during the Pleistocene. It shows the character of tundra hosting several rare species. The peat which estimated to fill 3 million cubic meter. The relic of its flora consists of 20 species peat moss, marsh andromeda, crauberry, three species of insectivorous sundew, crowberry, cottongras etc.