As classified in WFO snapshot
June 2024
latest classification for this taxon
variety
Gymnocalycium pflanzii var. millaresii
(Cárdenas) Donald
This variety name was first published in in Natl. Cact. Succ. J. 26: 100. 1971.
This variety name has been reclassified since this snapshot. Its current preferred usage is a synonym .