Horridocactus curvispinus (Bertero ex Colla) Backeb.
, Kakteenkunde 1940: 51 (1940).
External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:124098-2
- Publication
- Kakteenkunde. Organ der Deutschen Kakteen-Gesellschaft E.V., Sitz Berlin
- Collation
- 1940: 51
- Family as entered in IPNI
- Cactaceae