Ferocactus bicolor var. flavidispinus (Backeb.) N.P.Taylor in Cact. Succ. J. Gr. Brit. 41: 30. 1979
Ferocactus bicolor var. flavidispinus in Cact. Succ. J. Gr. Brit. 41: 30. 1979
is new combination for Thelocactus bicolor var. flavidispinus in Jahrb. Deutsch. Kakteen-Ges. 1: 6. 1941