The present study was carried out through a bibliographic survey of medicinal species, Asystasia gangetica, Catharanthus roseus, Arctium minus, Cynara scolymus, Anredera baselloides, Opuntia ficus-indica, Carica papaya, Ipomoea carnea, Ocimum gratissimum, Abelmoschus esculentus, Musa paradisiaca, Psidium cattleyanum, Syzygium cumini, Bougainvillea glabra, Bougainvillea spectabilis, Phyllanthus niruri, Capsicum baccatum var. pendulum and Zingiber officinale grown in the medicinal garden of Campus 2 of Universidade Paranaense, located in Umuarama, Paraná State, Brazil. The following databases were used for the bibliographic review: Scielo, Medline/Pubmed, and Google Scholar. All the species presented have hypoglycemic activity verified with preclinical and/or clinical pharmacological studies and have great potential for use in the treatment of diabetes or in combination with allopathic drugs. However, despite the pharmacological records found, additional scientific investigations are still needed to be able to use these species more safely and effectively.