Geographic distribution of the 76 samples of the Tamus clade of Dioscorea coded according to their respective lineage in the phylogenetic tree based on concatenated nuclear data (Figure 1), D. cretica (DC2) in green, and subclade; and pink, orange, and red for western European, central Mediterranean and eastern Mediterranean clades in D. communis s.s. (DC3), respectively. For D. orientalis, in purple, codes in the map indicate their phylogenetic position named “Leb” (Lebanon) and “S23”. For D. edulis (DC1), in light blue, codes in the map indicate their phylogenetic position named “Mad” (Madeira), “Ten” (Tenerife) and “GC” (Gran Canaria). Roman numbers in the mapped dot samples represent their respective plastid tree lineage (Figure 1). Asterisks indicate cultivated samples in Botanic Gardens of unknown geographic origin.