As classified in WFO snapshot
December 2022
Warning: older classification
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 .