Kyllinga Rottb. owns approximately 50 species distributed in America and tropical Africa, where most of them occurs. Six species has vouchers confirming its occurrence in Brazil, but floristic and taxonomic studies are scarce in Sergipe, maintaining the real number of Kyllinga uncertain. This study was elaborated aiming the inventory of species in Sergipe's territory. Expeditions were done in different regions of Sergipe and, based on these recent collected material and those deposited in regional herbaria, six species of Kyllinga was confirmed to Sergipe, three of them new occurrences, in Atlantic Forest and Caatinga domains. This study also provides the necessary material to identification of species: identification keys, descriptions and illustrations.
Caatinga; Atlantic Forest; ruderals; taxonomy
