Acanthocereus fosterianus (Cutak) Lodé in Cact. Avent. Int. 98 (Suppl.): 2. 2013 sec. Hunt 2016
- ≡Peniocereus fosterianus Cutak in Cact. Succ. J. (Los Angeles) 18: 23. 1946 syn. sec. Hunt 2016
- =Peniocereus fosterianus var. multitepalum Sánchez-Mej. in Cact. Suc. Mex. 19: 50. 1974 syn. sec. Guzmán & al. 2003
- =Peniocereus fosterianus var. nizandensis Sánchez-Mej. in Cact. Suc. Mex. 19: 49. 1974 syn. sec. Guzmán & al. 2003