Vegetación de los barreales del norte central de la provincia del Neuquén

the results of a phytosociological study of the barriales vegetation from northern central neuquén province, where the halophytum ameghinoi succulent therophyto dominates, are presented in this paper. a new plant association, which grows in gentle-slope endoreic basins characterized by fine sediments and the presence of temporary waters, is described. after analyzing the field and bibliographical data, we argue the syntaxonomic pertinence of the new plant association, its ecological characterization, floristic composition and chorology.