As classified in WFO snapshot
June 2024
Warning: older classification
variety
Echinocactus johnsonii var. octocentrus
J.M.Coult.
This variety name was first published in in Contr. U.S. Natl. Herb. 3: 374. 1896.
This variety name has been reclassified since this snapshot. Its current preferred usage is a synonym .