Ptilostemon gnaphaloides (Cirillo) Soják in Novit. Bot. Delect. Seminum Horti Bot. Univ. Carol. Prag. 1962: 46. 1962
Ptilostemon gnaphaloides in Novit. Bot. Delect. Seminum Horti Bot. Univ. Carol. Prag. 1962: 46. 1962
is new combination for Carduus gnaphaloides, Pl. Rar. Neapol. 1: 27. 1788
has orthographic variant Ptilostemon gnaphalodes
Ptilostemon gnaphaloides in Novit. Bot. Delect. Seminum Horti Bot. Univ. Carol. Prag. 1962: 46. 1962