External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:87476-2
- Publication
- Monatsschrift für Kakteenkunde. Berlin
- Collation
- 7(5): 107
- Date of Publication
- May 1897
- Family as entered in IPNI
- Cactaceae
Type Information
- Distribution Of Types
- Arizona (Southwestern U.S.A., Northern America)