Abstract
During a floristic study in Legado Verdes Cerrado region in Goiás state (Niquelândia municipality), Brazil, a new species of Eriosema genus was discovered. Eriosema magnum is here described and illustrated and its morphological similarities with its closest relatives are presented. The geographical distribution, conservation status, and information about flowering and fruiting are provided. Additionally, a dichotomous key to the taxa of Eriosema that occurs in the Legado Verdes do Cerrado was done.