A floristic and ethnobotanical study of useful plants was conducted in southern Senegal in the municipality of Mlomp in 2017. The aim of this study was to establish the list of cultivated and forest plants useful for the local communities and report their morphological types, the parts used and also their different uses. The ethnobotanical surveys were carried out with local communities. This study revealed 98 species of useful plants grouped in 81 genera belonging to 37 families. The Fabaceae followed by Annonaceae, Apocynaceae and Malvaceae are the most common families in Mlomp. Twelve species are most frequently cited of which 3 recorded 100% citation frequencies (Elaeis guineensis, Mangifera indica and Oryza spp.). Trees, herbs and shrubs are the most important morphological type for all listed species. The fruits are the most used parts followed by leaves and most plants are mainly used in human nutrition, followed by traditional medicine and finally as energy wood.

Keywords: Floristic study, ethnobotanical, useful plants, Basse Casamance, municipality of Mlomp