Haageocereus acranthus f. clavispinus (Rauh & Backeb.) Ostolaza in Cact. Succ. J. (Los Angeles) 67: 10. 1995
Haageocereus acranthus f. clavispinus in Cact. Succ. J. (Los Angeles) 67: 10. 1995
is new combination for Haageocereus clavispinus in Sitzungsber. Heidelberger Akad. Wiss., Math.-Naturwiss. Kl.: 382. 1958