This species of rush with a European distribution is widespread in all regions of Italy, except perhaps in Puglia and Calabria. It grows in moist disturbed vegetation, on clay to peaty, alternately soaked and dry soils that are rich in bases and nitrogen compounds, but poor in calcium and therefore sub-acid, from sea level to the montane belt. The species is sporadic on the edge of the Sardinian temporary ponds. The genus name, from the Latin 'iúngere' (to join, to tie), refers to the ancient use of weaving the stems and leaves of rush species to create different objects; the species name refers to the inflorescence, that is contracted in a kind of bundle. Flowering period: May to July.

Italian name(s): Carizì (Lombardia, Brescia), Giunco conglomerato (Italia), Giunco contratto (Italia), Giunco da stoppini (Toscana), Grulo (Veneto, Verona), Juncu masculinu (Calabria), Juncu puntutu marinu (Sicilia), Palud tond (Friuli), Stoppini perpetui (Toscana), Zigoi (Lombardia, Brescia), Zoncolo (Veneto, Verona), Zongh (Emilia-Romagna, Bologna).