Carduus macrocephalus subsp. sporadum (Halácsy) Franco in Bot. J. Linn. Soc. 71: 48. 1975
Carduus macrocephalus subsp. sporadum in Bot. J. Linn. Soc. 71: 48. 1975
is new combination for Carduus nutans var. sporadum, Consp. Fl. Graec. 2: 103. 1902
Carduus macrocephalus subsp. sporadum in Bot. J. Linn. Soc. 71: 48. 1975