Thelocactus conothelos subsp. flavus (Mosco & Zanov.) Mosco & Zanov. in Bradleya 18: 63. 2000 sec. Guzmán & al. 2003
- ≡Thelocactus flavus Mosco & Zanov. in Cactus & Co. 3: 20. 1999 syn. sec. Guzmán & al. 2003
- =Thelocactus panarottoanus Halda in Acta Mus. Richnov., Sect. Nat., 5: 161. 1998 syn. sec. Mosco & Zanovello 2000