Borzicactus aurantiacus var. calvescens (Kimnach & Hutchison) Donald in Natl. Cact. Succ. J. 26: 10. 1971
Borzicactus aurantiacus var. calvescens in Natl. Cact. Succ. J. 26: 10. 1971
is new combination for Borzicactus calvescens in Cact. Succ. J. (Los Angeles) 29: 112. 1957