Cereus grandiflorus var. armatus (K.Schum.) L.D.Benson in Cact. Succ. J. (Los Angeles) 41: 126. 1969
Cereus grandiflorus var. armatus in Cact. Succ. J. (Los Angeles) 41: 126. 1969
is new combination for Cereus nycticalus var. armatus, Gesamtbeschr. Kakt.: 147. 1897–1899