The alpine zone is divided into several narrower zones. The first subzone is mostly characterized by heathland, with many alder shrubs, mosses and lichens, and frequently dense mats of crowberries. Different types of heaths can be distinguished. One type is mostly composed of a mix of alpine clubmoss and alpine bearberry. Cushion pink and Lapland lousewort bring autumn colour to the heaths, which are otherwise fairly monocrome. In the chalky soils of this subzone, the vegetation is very rich and forms prairies with mountain avens as the most characteristic species. purple saxifrage, velvetbells, alpine pussytoes and alpine veronica are also present. With increasing altitude, the dwarf willow and lichens become more prominent, forming a second zone. Gradually the plants become more scarce, and above there are only 18 types of plants present.