Cultivation and possible domestication of feral and possibly wild yams (Dioscorea spp.) in Southwest Ethiopia: ethnobotanical and morphological evidence
aMizan-Tepi University, Department of Horticulture, Mizan-Aman, Ethiopia;bSchool of Plant and Horticulture Science, Hawassa University, Hawassa, Ethiopia;cHawassa University, Department of Biology, Hawassa, Ethiopia