With a little more 577,000 km2, it is the region with smaller territory, occupies only 6.75% of the Brazilian territory. This formed by the States of Parana, Santa Catarina and Rio Grande do Sul, has a subtropical climate, except in the North region of the State of Parana, where the tropical climate predominates, although exists a diversity of temperatures in the different areas form that it. The regions of elevated plateaus more have low temperatures, with snowed occasional, and the region of the plain of Pampas, more towards the south, has higher temperatures. The vegetation is of agreed those variations of temperatures, so it is so in the coldest places the zones of araucarias predominate (species of pines) and in Pampas, the fields of pulses.