Contribuição para o conhecimento florístico da Terra Indígena Kadiwéu, MS

Abstract

Savannas bring together physiognomies with open vegetation subject to the influence of soil, altitude and water availability, thus presenting a wide variation in characteristics. In Brazil, they occur in all areas, being the richest in the world. In the state of Mato Grosso do Sul, they occur in the Cerrado and Pantanal, together with seasonal forest physiognomies, characteristic of the Atlantic Forest domain. The Kadiwéu Indigenous Land is located in the southwest region of the state and has different physiognomies characteristic of Cerrado, Pantanal and Chaco. The objective of this work was to carry out a floristic survey around Aldeia Alves de Barros, in the Kadiwéu TI, addressing the different physiognomies that occur in the region. The collections were carried out in two “expeditions”, with unsystematic walks. The botanical material was identified using specific bibliography and with the help of experts. 274 species were found, belonging to 163 genera and 58 families. The richest families were Fabaceae, Poaceae, Asteraceae, Malvaceae, Cyperaceae, Rubiaceae, Convolvulaceae and Apocynaceae. The richest genera were Cyperus, Mimosa, Evolvulus, Chamaecrista, Paspalum and Sida. There was a predominance of species of wide occurrence and of Cerrado lato sensu. Species from grasslands, steppic savannah and seasonal forests were also found. New occurrences were recorded for the state of Mato Grosso do Sul. The study area has greater influence from the Cerrado and a high richness of plant species.