External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:289053-2
- Publication
- Cactaceae, The (Britton & Rose). Descriptions and illustrations of plants of the cactus family
- Collation
- 2: 195
- Family as entered in IPNI
- Cactaceae