As classified in WFO snapshot
June 2024
Warning: older classification
variety
Echinocactus whipplei var. glaucus
(K.Schum.) J.A.Purpus
This variety name was first published in in Mitt. Deutsch. Dendrol. Ges. 35: 50. 1925.
This variety name has been reclassified since this snapshot. Its current preferred usage is a synonym .