The Nardo-Gnaphalietum supini plant association in the Western Carpathians (the Tatra Mts and the Babia Góra Massif)
<p>This article is the first published information on the occurrence of the snow-beds of Nardo-Gnaphalietum supini in the Western Carpathians. So far, localities of Nardo-Gnaphalietum supini phytocoenoses have been known exclusively from the Alps, the Black Forest, and the Eastern Carpathians. During this study, carried out in the Polish Carpathians, phytocoenoses of Nardo-Gnaphalietum were recorded in the two highest massifs - the Tatra Mountains and the Babia Góra Massif. They were closely related to anthropogenically-influenced sites with exposed and lumped ground located near tourist routes. Habitat characterization and spatial complexes of the patches of Nardo-Gnaphalietum in the investigated area are given herein.</p><p>Critical revision of phytosociological data from the Alps and the Eastern Carpathians revealed that the discussed phytocoenoses have been described within the communities of Luzuletum alpino-pilosae, Salicetum herbaceae or Nardetum strictae. In this study, all phytosociological data concerning the association were collected and the floristic distinction of the phytocoenoses of particular mountain massifs is discussed. A new subassociation Nardo-Gnaphalietum oligotrichetosum hercynici was distinguished on the basis of local habitat variability. Although Nardo-Gnaphalietum supini does not have characteristic species, it is a well-distinguished typological unit in the class Salicetea herbaceae Br.-Bl. 1948, and is a central association of the alliance Nardo-Salicion herbaceae Englisch 1999.</p>