Bayesian majority-rule consensus tree inferred from combined plastid dataset of trnK/matK, trnK-psbA, trnQ-rps16, rpl32-trnL. Support values PP (left) and MLBS (right) can be found above branches and JK below; “<50” denotes branches with MLBS support below 50%, “--” denotes a node not found by the respective analysis. Country codes: AM = Armenia, AT = Austria, AZ = Azerbaijan, BG = Bulgaria, CY = Cyprus, DE = Germany, ES = Spain, FR = France, GE = Georgia, GR = Greece (NE = North East, NC = North Central, KK = Kriti and Karpathos, StE = Sterea Ellas, NPi = Norh Pindos, EAe = East Aegean Islands, Pe = Peloponnisos), HR = Croatia, IR = Iran, IT = Italy, RO = Romania, RU = Russia, SK = Slovakia, TR = Turkey, ZA = South Africa. The annotations on the infrageneric classification based on Pax and Hoffmann (1934) are indicated by coloured squares.