Floristic composition of the a floodplain in Balsa Nova county, Paraná State, Brazil

Abstract

The objective of this research was to study the floristic composition on a Iguaçu river floodplain with area of 4,4 hectares, located at Balsa Nova municipality, Parana state, Brazil, and also improve improving the collections of herbaria. For the floristic surveys, observations were done every 15 days by collecting material for herborization and botanical identification. The checklist included 176 species, 103 genera and 46 families, with Poaceae (45), Cyperaceae (28) and Asteraceae (15), comprising 50% of all species, were the richest families. The species diversity increases the biological diversity of the floodplains. The fragility of these natural environments associated to the accelerated conversion of wide natural areas, shows the urgency of establishing measures that focus on the conservation and preservation of this natural typology.