Thelocactus flavidispinus (Backeb.) Backeb. in Cact. Succ. J. (Los Angeles) 23: 150. 1951
Thelocactus flavidispinus in Cact. Succ. J. (Los Angeles) 23: 150. 1951
is new combination for Thelocactus bicolor var. flavidispinus in Jahrb. Deutsch. Kakteen-Ges. 1: 6. 1941