External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:20010714-1
- Species Name
- Melocactus curvispinus Pfeiff., Enum. Diagn. Cact. 46. (1837).
- Publication
- Bradleya; Yearbook of the British Cactus and Succulent Society. Botley
- Collation
- 20: 38 (2002)
- Family as entered in IPNI
- Cactaceae