Ritterocactus horstii (J.Theun.) Doweld
, Sukkulenty 3(1-2): 60 (2000).
External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:1215212-2
- Publication
- Sukkulenty. Moscow
- Collation
- 3(1-2): 60
- Family as entered in IPNI
- Cactaceae