The following paper reports the results of phytosociological research of tall-herb and tall-herb plant communities within the class Mulgedio-Aconitetea in the subalpine belt of the Krivánska Malá Fatra Mts. The data set of 209 relevés was sampled and analysed using numerical classification and ordination. Major ecological gradients were interpreted using Ellenberg's indicator values and the Shannon-Wiener diversity index. Ten associations within five alliances were distinguished and characterised: Aconitetum firmi, Digitali ambiguae-Calamagrostietum arundinaceae, Helianthemo grandiflorae-Calamagrostietum arundinaceae, Potentillo aurei-Calamagrostietum arundinaceae, Allio victorialis-Calamagrostietum villosae, Festucetum carpaticae, Adenostylo alliariae-Athyrietum alpestris, Aconito firmi-Adenostyletum alliariae, Geranio robertiani-Delphinietum elati and Aconito firmi-Rumicetum alpini. Relationships between the floristic composition of the communities and environmental variables were analysed by canonical correspondence analysis. V članku so prikazani rezultati fitocenološke raziskave rastlinskih združb visokih steblik in trav razreda Mulgedio-Aconitetea v subalpinskem pasu gorovja Krivánska Malá Fatra. Podatkovni niz sestavlja 209 popisov, ki smo jih analizirali z numerično klasifikacijo in ordinacijo. Glavne ekološke gradiente smo interpretirali z Ellenbergovimi indikacijskimi vrednostmi in Shannon-Wienerjevim indeksom diverzitete. Ločili smo deset asociacij znotraj petih zvez in jih opisali: Aconitetum firmi, Digitali ambiguae-Calamagrostietum arundinaceae, Helianthemo grandiflorae-Calamagrostietum arundinaceae, Potentillo aurei-Calamagrostietum arundinaceae, Allio victorialis-Calamagrostietum villosae, Festucetum carpaticae, Adenostylo alliariae-Athyrietum alpestris, Aconito firmi-Adenostyletum alliariae, Geranio robertiani-Delphinietum elati in Aconito firmi-Rumicetum alpini. Povezavo med vrstno sestavo rastlinskih združb in rastiščnimi dejavniki smo analizirali s kanonično korespondenčno analizo.