Sclerocactus johnsonii subsp. acunensis

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Sclerocactus johnsonii subsp. acunensis (W.T.Marshall) M.A.Baker & J.M.Porter, Endang. Sp. Threats Conserv.: 48. 2016 sec. Kew WCVP (2019)

≡Echinomastus acunensis W.T.Marshall in Saguaroland Bull. 7: 34. 1953 syn. sec. Parfitt & Gibson 2003
≡Neolloydia erectocentra var. acunensis (W.T.Marshall) L.D.Benson, Cacti Ariz., ed. 3: 25. 1969 syn. sec. Parfitt & Gibson 2003
≡Echinomastus erectocentrus var. acunensis (W.T.Marshall) Bravo in Cact. Suc. Mex. 25: 65. 1980 syn. sec. Kew WCVP (2019)
≡Echinomastus erectocentrus subsp. acunensis (W.T.Marshall) U.Guzmán in Cactaceae Syst. Init. 16: 17. 2003 syn. sec. Parfitt & Gibson 2003

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