Gymnocactus ysabelae (Schlange) Backeb., Cactaceae 5: 2856. 1961
Gymnocactus ysabelae, Cactaceae 5: 2856. 1961
is new combination for Thelocactus ysabelae in Cact. Succ. J. (Los Angeles) 5: 551. 1934
Gymnocactus ysabelae, Cactaceae 5: 2856. 1961
Taxon for this name