Siliceous alpine and boreal grasslands
Subalpine to nival natural or near-natural grassland on siliceous rock. These include alpine grasslands of the Caricetea curvulae and subalpine-alpine mat-grass swards (Nardion strictae), i.e. Nardus-rich extensive alpine pastures and transitional communities to siliceous snowfield communities.
Notes on habitat mapping
The criterion for the delimitation of this habitat type is the presence of vegetation of the syntaxa given above (Nardion: only Siversio-Nardetum strictae). The upland matt-grass swards of the low mountain ranges generally lack the subalpine and alpine flora elements, and the regional facies of the upland mat-grass swards of the Upper Black Forest, the Harz mountains, and the Bavarian Forest are to be considered under species-rich Nardus grasslands (6230).