The positive effect of extreme weather: the new localities of selected endangered plant species found during extremely moist year 2010

The saline soils area covered by specific halophytic vegetation was radically decreased during last few decades. The temporary pools in arable fields may provide the environmental conditions favourable for some rare plant species. The year 2010 was defined as extremely moist; and rainy weather favoured the frequency and range of inundated field depressions occurrence in Podunajska nižina Lowland. During field mapping and vegetation inventory, the occurrence of one endangered species (EN) Cirsium brachycephalum, five critically endangered (CR) species (Heleochloa alopecuroides, H. schoenoides, Lindernia tribracteatum, Schoenoplectus supinus and Lythrum tribracteatum) and one potentially extinct species (EX?) Chenopodium chenopodioides were recorded. The conservation value of the temporary pools in agricultural field is discussed in terms of long-term survival of the species in cultural landscape.