This vegetation type occurs in small fragmentary stands on steep loess slopes and contains relict species of the Pleistocene cold steppes such as Agropyron pectinatum, Kochia prostrata, Taraxacum serotinum and Krascheninnikovia ceratoides, the latter occurring only outside the Czech Republic. On most sites this vegetation is maintained open by disturbances such as soil erosion, burrowing rabbits or vineyard hoeing. In the past this vegetation was found on a few sites in southern Moravia, of which only two have been preserved.