Abstract We present the taxonomic treatment of Evolvulus in state Ceará, as part project “Flora do Ceará: Knowing to conserve”. The study was based on floristic-morphological analysis specimens deposited ASE, CEN, EAC, ESA, HCDAL, HST, HUEFS, HUVA, HVASF, IPA, PEUFR, and UFP herbaria, specialized bibliography, typus collections available on-line platforms, field observations. In we registered 1...