External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:1216380-2
- Family as entered in IPNI
- Cactaceae
Links
- Nomenclatural link
- Cereus caespitosus var. castaneus Engelm. in A.Gray, Boston J. Nat. Hist. 6: 203 (1850).
- Duplicate citation of
- Echinocereus castaneus Orcutt, Cactography 4 (1926).