Cirsium tuberosum subsp. bulbosum (Lam.) Sudre, Fl. Toulous.: 117. 1907
Cirsium tuberosum subsp. bulbosum, Fl. Toulous.: 117. 1907
is new combination for Carduus bulbosus, Encycl. 1: 705. 1785
Cirsium tuberosum subsp. bulbosum, Fl. Toulous.: 117. 1907