Echinomastus erectocentrus subsp. acunensis (W.T.Marshall) U.Guzmán in Cactaceae Syst. Init. 16: 17. 2003
Echinomastus erectocentrus subsp. acunensis in Cactaceae Syst. Init. 16: 17. 2003
is new combination for Echinomastus acunensis in Saguaroland Bull. 7: 34. 1953