External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:319108-2
- Publication
- Madrono; Journal of the California Botanical Society
- Collation
- 36(4): 226
- Date of Publication
- 1989 publ. 1990
- Family as entered in IPNI
- Cactaceae
Type Information
- Distribution Of Types
- Texas (South-Central U.S.A., Northern America)