| Notocactus uebelmannianus |
Buining |
in Kakteen And. Sukk. 19: 175. 1968. |
| Notocactus arachnitis |
F.Ritter |
in Succulenta (Netherlands) 49: 108. 1970. |
| Parodia werneri |
Hofacker |
in Cactaceae Consensus Init. 6: 12. 1998. |
| Ritterocactus crassigibbus |
(F.Ritter) Doweld |
in Sukkulenty 2(2): 22. 1999. |
| Ritterocactus meonacanthus |
(Prestlé) Doweld |
in Sukkulenty 2(2): 22. 1999. |
| Ritterocactus uebelmannianus |
(Buining) Doweld |
in Sukkulenty 2(2): 23. 1999. |
| Notocactus meonacanthus |
Prestlé |
in Internoto 7(2): 37. 1986. |
| Parodia meonacantha |
(Prestlé) Hofacker |
in Cactaceae Consensus Init. 6: 11. 1998. |
| Notocactus uebelmannianus subsp. pleiocephalus |
(N.Gerloff & Königs) Lodé |
in Cact.-Avent. Int. 98(Suppl.): 8. 2013. |
| Parodia werneri subsp. pleiocephala |
(N.Gerloff & Königs) Hofacker |
in Cactaceae Consensus Init. 6: 12. 1998. |
| Notocactus crassigibbus |
F.Ritter |
in Succulenta (Netherlands) 49: 108. 1970. |
| Notocactus arachnitis f. darilhoensis |
N.Gerloff |
in Internoto 18: 119. 1997. |
| Notocactus arachnitis f. minor |
(F.Ritter) N.Gerloff & Neduchal |
in Internoto 25: 52. 2004. |
| Notocactus arachnitis var. minor |
F.Ritter |
in Succulenta (Netherlands) 49: 108. 1970. |
| Notocactus uebelmannianus f. flaviflorus |
N.Gerloff & Königs |
in Internoto 13: 105. 1992. |
| Notocactus uebelmannianus f. gilviflorus |
Königs & N.Gerloff |
in Internoto 14: 70. 1993. |
| Notocactus uebelmannianus f. nilsonii |
(Königs) N.Gerloff & Neduchal |
in Internoto 25: 93. 2004. |
| Notocactus uebelmannianus var. nilsonii |
Königs |
in Internoto 11: 123. 1990. |
| Notocactus uebelmannianus var. pleiocephalus |
N.Gerloff & Königs |
in Internoto 13: 105. 1992. |
| Ritterocactus uebelmannianus subsp. pleiocephalus |
(N.Gerloff & Königs) Doweld |
in Sukkulenty 2(2): 23. 1999. |
