Traditional leafy vegetables in Benin: folk nomenclature, species under threat and domestication

Using participatory research appraisal, 29 ethnic areas were surveyed to document the folk nomenclature, identify the species under threat and understand the domestication process for the traditional leafy vegetables (TLV) consumed in Benin. It exists a rich folk nomenclature mainly characterised by synonymy and homonymy, 24 species under threat and 17 species under domestication. Factors threatening these TLV listed by farmers include forest destruction, bush fires, destructive harvesting methods and lack of knowledge about the plants. We emphasize the necessity of combining folk and formal nomenclature in all biodiversity research programmes on TLV and recommend the development of integrated conservation through utilisation strategies for the sustainable preservation and promotion of TLV in Benin.