As classified in WFO snapshot
June 2025
latest classification for this taxon
subspecies
Echinocactus johnsonii subsp. octocentrus
(J.M.Coult.) A.E.Murray
This subspecies name was first published in in Kalmia 12: 20. 1982.
This subspecies name has been reclassified since this snapshot. Its current preferred usage is a synonym .