plants Article Ethnobotanical Study on Plant Used by Semi-Nomad Descendants’ Community in Ouled Dabbeb—Southern Tunisia Olfa Karous 1,2,* , Imtinen Ben Haj Jilani 1,2 and Zeineb Ghrabi-Gammar 1,2 1 Institut National Agronomique de Tunisie (INAT), Département Agronoime et Biotechnologie Végétale, Université de Carthage, 43 Avenue Charles Nicolle, 1082 Cité Mahrajène, Tunisia;
[email protected] (I.B.H.J.);
[email protected] (Z.G.-G.) 2 Faculté des Lettres, Université de Manouba, des Arts et des Humanités de la Manouba, LR 18ES13 Biogéographie, Climatologie Appliquée et Dynamiques Environnementales (BiCADE), 2010 Manouba, Tunisia * Correspondence:
[email protected] Abstract: Thanks to its geographic location between two bioclimatic belts (arid and Saharan) and the ancestral nomadic roots of its inhabitants, the sector of Ouled Dabbeb (Southern Tunisia) represents a rich source of plant biodiversity and wide ranging of ethnobotanical knowledge. This work aims to (1) explore and compile the unique diversity of floristic and ethnobotanical information on different folk use of plants in this sector and (2) provide a novel insight into the degree of knowledge transmission between the current population and their semi-nomadic forefathers. Ethnobotanical interviews and vegetation inventories were undertaken during 2014–2019. Thirty informants aged from 27 to 84 were interviewed. The ethnobotanical study revealed that the local community of Ouled Dabbeb perceived the use of 70 plant species belonging to 59 genera from 31 families for therapeutic (83%), food (49%), domestic (15%), ethnoveterinary (12%), cosmetic (5%), and ritual purposes (3%). Moreover, they were knowledgeable about the toxicity of eight taxa. Nearly 73% of reported ethnospecies were freely gathered from the wild.