External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:175160-2
- Publication
- Catalogue of North American Plants North of Mexico, Exclusive of the Lower Cryptogams. By A. A. Heller. Edition 2. Lancaster, PA
- Collation
- 8
- Date of Publication
- 10 Nov 1900
- Family as entered in IPNI
- Cactaceae