The article describes new localities of a south-European montane species Viola pyrenaica in the Julian Alps and in the Trnovski gozd and Nanos plateaus (the northern part of the Dinaric mountains). It has been established that in the localities known so far in Slovenia, the species grows on similar sites as elsewhere in the Alps and other mountain ranges of the Balkan Peninsula, above all on overgrown screes, stony grasslands, on forest edges, in light forests on stony ground and in tall herb communities on calcareous bedrock in the submontane, montane and subalpine belt (450 to 1600 m a.s.l.). The floristic composition of the communities in which it grows is presented in four tables. On the Trnovski gozd plateau it was found in various successional stages of abandoned pastures or grasslands of the association Genisto sericeae-Seslerietum kalnikensis and in open coppice stands of hop hornbeam and flowering ash, which are classified into the association Seslerio autumnalis-Ostryetum carpinifoliae. V članku smo opisali nova nahajališča južnoevropske montanske vrste Viola pyrenaica v Julijskih Alpah ter v Trnovskem gozdu in pod Nanosom (severni del Dinarskega gorstva). Ugotavljamo, da ta vrsta na doslej znanih nahajališčih v Sloveniji uspeva na podobnih rastiščih kot drugod v Alpah in v gorovjih Balkanskega polotoka, predvsem na poraslem grušču, v kamnitih traviščih, na gozdnih robovih, v svetlih kamnitih gozdovih in v združbah visokih steblik na apnenčasti podlagi v submontanskem, montanskem in subalpinskem pasu (450 do 1600 m nm. v.). Floristično sestavo združb, v katerih uspeva, prikazujemo v štirih tabelah. V Trnovskem gozdu smo jo našli v različnih stadijih zaraščanja na traviščih iz asociacije Genisto sericeae-Seslerietum kalnikensis in v vrzelastih panjevskih sestojih črnega gabra in malega jesena, ki jih uvrščamo v asociacijo Seslerio autumnalis-Ostryetum carpinifoliae