Ethnobotanical study of wild edible plants in Metema and Quara districts, Northwestern Ethiopia.

Background: Wild edible plants (WEPs) are vital to enhance food security and generate income. Despite Ethiopia's vast area and cultural diversity, there remains a need for further investigation of WEPs. Therefore, this study aimed to document WEPs, and the indigenous knowledge associated with them in the Metema and Quara districts of north-western Ethiopia.

Methods: Data on WEPs were collected through semi-structured interviews with 396 informants, guided field walks, focus group discussions, and market surveys. The data were analyzed using preference ranking, priority ranking, direct matrix ranking, and Jaccard's index.

Results: We documented 51 WEPs that were distributed among 26 families and 39 genera. Fabaceae was the most represented family with eight species. Trees accounted for 49% of WEPs and were primarily consumed by their fruits (57%). Local communities usually consume these plants raw as a supplementary food, although some require processing. Of the recorded WEPs, 94.1% had multipurpose uses, in addition to nutrition. The main threats to WEPs availability were agricultural land expansion, fuelwood harvest, and construction use.

Conclusions: WEPs play a crucial role in enhancing food security, nutrition, and income generation for local communities. However, they are facing increasing threats from human activity. Therefore, sustainable utilization, conservation efforts, and collaboration among stakeholders are necessary for the future use of WEPs. Furthermore, a nutritional composition assessment is recommended for the most promising WEPs.