Echinops thracicus Velen., Fl. Bulg.: 286. 1891
Echinops thracicus, Fl. Bulg.: 286. 1891
is basionym for Echinops ritro subsp. thracicus in Bot. J. Linn. Soc. 71: 42. 1975
Echinops thracicus, Fl. Bulg.: 286. 1891
Echinops thracicus, Fl. Bulg.: 286. 1891
Taxon for this name