Traditional botanical knowledge of medicinal plants in a “quilombola” community in the Atlantic Forest of northeastern Brazil

Abstract

Plant resources are essential to the survival of the human species, and they play several important roles in maintaining the quality of life. The purpose of this study was to assess the traditional knowledge of medicinal plants in the Ipiranga quilombola community on the south shore of the state of Paraiba, northeast of Brazil. Ethnobotanical data were collected using semi-structured interviews that were performed with the head of the family for all the domestic units in the community (total of 100 individuals). Data were qualitative and quantitative (Use-Value index and informant consensus factor) analyzed. A total of 69 species belonging to 38 families were mentioned by the respondents. Only two medicinal species (Stryphnodendron pulcherrimum (Willd.) Hochr and Handroanthus impetiginosus (Mart. ex DC.) Mattos) are found in the surrounded Atlantic Forest area. All the other medicinal species are cultivated in backyards. The species with the highest Use-Values were Alpinia zerumbet (Pers.) B.L. Burtt. & R.M. Sm. (colony). The medicinal species were indicated for the treatment of 66 diseases, which were classified into 14 categories of body systems. Respiratory system disorders (0.54), gastrointestinal system disorders (0.43), and a genitourinary system disorder (0.42) were the categories with the highest consensus values among the respondents. The research showed that despite having a health center close to the community, the Ipiranga community still uses medicinal plants to cure diseases, with most species being cultivated in backyards.