External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:309319-2
- Publication
- Description of the Cactaceae
- Collation
- 4(5): 50
- Family as entered in IPNI
- Cactaceae
Type Information
- Distribution Of Types
- Williams' River, Mohave County (Arizona, Southwestern U.S.A., Northern America)