Armatocereus oligogonus Rauh & Backeb., Descr. Cact. Nov. 1: 13. 1957 ["1956"]
Armatocereus oligogonus, Descr. Cact. Nov. 1: 13. 1957 ["1956"]
is basionym for Armatocereus ghiesbreghtii var. oligogonus, Kakteen Südamerika 4: 1275. 1981