This is a species-rich, low-growing grassland dominated by Nardus stricta. It occurs on nutrient-poor soils over acidic bedrocks such as granite, gneiss and sandstone. It is found in the submontane and montane belts of all mountain ranges of the Czech Republic. Traditionally these grasslands were grazed or mown, but today most of them have been abandoned and are disappearing due to nutrient enrichment and subsequent spread of more strongly competitive, nutrient-demanding species.