The present study evaluated ethno medicinal knowledge of people in the rural community of São Sebastião, Vitória da Conquista, Bahia, Brazil. Using semi-structured interviews, 84 randomly chosen individuals informed about the use of traditional medicinal plants in their community, thereby identifying their therapeutic potential, which were categorized according to the ICD-10 (International Statistical Classification of Diseases and Related Health Problems). The collected data were analyzed with using the Informant consensus factor (ICF), the Relative importance (RI) and the scores were calculated by using Fidelity level (FL). Forty-six species traditionally used in treatment of ailments were categorized as diseases: digestive system, respiratory problems, general symptoms/signs, nervous system and circulatory system. Lippia alba, Cymbopogon citratus and Foeniculum vulgare had a RI >1, indicating important value to the community. Highest values of FL were: Spondias purpurea, Bauhinia forficata, Punica granatum, Matricaria chamomilla, Stryphnodendron adstringens, Foeniculum vulgare, Mentha piperita, Amburana cearensis and Dysphania ambrosioides. S. purpurea, to treat hypertension, and Amburana cearensis (indigestion) deserve in depth pharmacological and toxicological studies so that they might be included in the National Program of Medicinal Plants and Phytotherapics of the Brazilian Sistema Único de Saúde and safely prescribed by regional health teams, lowering costs for local health system.