External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:966814-1
- Publication
- Phytologia; Designed to Expedite Botanical Publication. New York
- Collation
- 70(4): 229
- Date of Publication
- 1991
- Family as entered in IPNI
- Crassulaceae