Ethnobotanical study of edible wild plants in Ensaro district, Amhara regional state, Ethiopia

Abstract Background: Ethiopia is one of the biodiversity-rich countries in Africa. Most rural communities are highly dependent on forest products including edible wild plants. Thus, many plant taxa are under greater threats before they are documented and their nutritional values are evaluated. This study was carried out to document edible wild plants and associated indigenous practices, and the correlations with socio-demographic variables on edible wild plants in Ensaro district, North Shewa Zone, Amhara Regional State, Ethiopia. It also examined the habitats and major threatening factors of edible wild plants.Methods: The study was conducted from September to December 2020 in Ensaro district, Amhara Regional State, Ethiopia. Semi-structured interviews was made with 98 community members regarding edible wild plant species, parts used, harvesting and consumption time, preparation methods, supplementary uses, life forms, habitats and threatening factors. The socioeconomics characteristics of the study participants was also documented. Excel and R-package were employed for statistical analysis. Analysis of Variance (P < 0.05) was used to observe the correlation of socio-demographic and socioeconomic characteristics with indigenous knowledge of respondents on edible wild plants.Results: Forty-three edible wild plants recorded in this study area. Fabaceae and Moraceae families were the most popular edible wild plant species in the study area. Shrubs were the dominant life forms of recorded plants (37%). Ripe fruits (72%) were the most commonly used plant parts. Indigenous knowledge of respondent on edible wild plants positively correlated with socio-demographic and socioeconomic characteristics of the respondents. There was no knowledge difference between genders. The number of species, genera and families of edible wild plants were higher in mid-land agro-ecology than in lowland and highland agro-ecologies of the study area. The distribution of edible wild plants found to be less in the highland agroecology. Edible wild plants in the study mainly found in shrub land areas which are highly threatened by fuelwood collection.Conclusion: Forty-three edible wild plants recorded in the study area. The community consumes edible wild plants during normal and famine periods. Edible wild plants such as Snowdenia polystachya (Muja), Eleusine coracana (Degelie or wanga), Urtica simensis(Sama) and Medicago polymorpha (Amaqito) are not used during normal period and young people do not know them even how to use them. In addition, edible wild plants are under greater pressure due to farmland expansion in the study area. This has led to the reduction of edible wild plants and associated indigenous knowledge.