Parodia crassigibba
Parodia crassigibba in Bradleya 5: 93. 1987 sec. Zappi & Taylor 2020
- ≡Notocactus crassigibbus in Succulenta (Netherlands) 49: 108. 1970 syn. sec. Anceschi & Magli 2018
- ≡Ritterocactus crassigibbus in Sukkulenty 2(2): 22. 1999 syn. sec. Anceschi & Magli 2018
- =Notocactus uebelmannianus in Kakteen And. Sukk. 19: 175. 1968 syn. sec. Kew WCVP (2019)
- ≡Ritterocactus uebelmannianus in Sukkulenty 2(2): 23. 1999 syn. sec. Kew WCVP (2019)
- ≡Parodia werneri in Cactaceae Consensus Init. 6: 12. 1998 syn. sec. Hunt 2006
- =Notocactus arachnitis var. minor in Succulenta (Netherlands) 49: 108. 1970 syn. sec. Kew WCVP (2019)
- ≡Notocactus arachnitis f. minor in Internoto 25: 52. 2004 syn. sec. Kew WCVP (2019)
- =Notocactus meonacanthus in Internoto 7(2): 37. 1986 syn. sec. Anceschi & Magli 2018
- ≡Parodia meonacantha in Cactaceae Consensus Init. 6: 11. 1998 syn. sec. Anceschi & Magli 2018
- ≡Ritterocactus meonacanthus in Sukkulenty 2(2): 22. 1999 syn. sec. Anceschi & Magli 2018
- =Notocactus uebelmannianus var. nilsonii in Internoto 11: 123. 1990 syn. sec. Kew WCVP (2019)
- ≡Notocactus uebelmannianus f. nilsonii in Internoto 25: 93. 2004 syn. sec. Kew WCVP (2019)
- =Notocactus uebelmannianus var. pleiocephalus in Internoto 13: 105. 1992 syn. sec. Anceschi & Magli 2018
- ≡Ritterocactus uebelmannianus subsp. pleiocephalus in Sukkulenty 2(2): 23. 1999 syn. sec. Anceschi & Magli 2018
- ≡Notocactus uebelmannianus subsp. pleiocephalus in Cact.-Avent. Int. 98(Suppl.): 8. 2013 syn. sec. Anceschi & Magli 2018
- ≡Parodia werneri subsp. pleiocephala in Cactaceae Consensus Init. 6: 12. 1998 syn. sec. Anceschi & Magli 2018