Thelocactus ysabelae Schlange in Cact. Succ. J. (Los Angeles) 5: 551. 1934
Thelocactus ysabelae in Cact. Succ. J. (Los Angeles) 5: 551. 1934
is basionym for Turbinicarpus saueri subsp. ysabelae in Kakteen And. Sukk. 50(11): 280. 1999
is basionym for Gymnocactus ysabelae, Cactaceae 5: 2856. 1961
is basionym for Neolloydia knuthiana var. ysabelae in Cact. Succ. J. (Los Angeles) 13(4): 154. 1995
is basionym for Turbinicarpus ysabelae in Repert. Pl. Succ. 19(1): 22. 1983
is basionym for Pediocactus ysabelae in Acta Mus. Richnov., Sect. Nat., 5(1): 18. 1998