Carduus collinus subsp. cylindricus (Borbás) Soó in Feddes Repert. 85: 453. 1974
Carduus collinus subsp. cylindricus in Feddes Repert. 85: 453. 1974
is new combination for Carduus cylindricus in Természet (Pest) 9: 121. 1877
? Carduus collinus subsp. cylindricus in Feddes Repert. 85: 453. 1974