Comparative ethnobotanical analysis of the used medicinal plants in the region of the Northern Black Sea coast (Bulgaria)

Abstract The current ethnobotanical study summarizes the use of medicinal plants by locals in the region of the Northern Black Sea Coast, Bulgaria. The survey was conducted in the period between 2014 and 2020. After prior informed consent, 709 local residents from 32 settlements were interviewed. The interviews with the local population were conducted using the “face to face” technique with the help of pre-prepared original questionnaires. The study presents quantitative ethnobotanical information on the use of medicinal plants in the study area. The results were analyzed using quantitative indices: Respondent Consensus Ratio (FIC), Loyalty Level Index (FL) and Significance Value Index (IVs). A total of 332 species of medicinal plants belonging to 250 genera of 90 families have been identified for the region of the Northern Black Sea Coast. The largest number of citations are registered for the use of medicinal plants for culinary purposes and for use in human medicine. The use of medicinal plants in other household applications has been studied.