Echinocactus johnsonii subsp. octocentrus (J.M.Coult.) A.E.Murray in Kalmia 12: 20. 1982
Echinocactus johnsonii subsp. octocentrus in Kalmia 12: 20. 1982
is new combination for Echinocactus johnsonii var. octocentrus in Contr. U.S. Natl. Herb. 3: 374. 1896