Pyrrhocactus horridus var. robustus (F.Ritter) F.Ritter
, Kakteen Südamerika 3: 947 (1980): (1980).
External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:919585-1
- Species Name
- Pyrrhocactus horridus (Colla) Backeb., Kaktus-ABC [Backeb. & Knuth] 264 (1936).
- Publication
- Kakteen in Sudamerika: Ergebnisse Meiner 20-jährigen Feldforschung
- Collation
- 3: 947 (1980):
- Date of Publication
- 1980
- Family as entered in IPNI
- Cactaceae