External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:1106709-2
- Species Name
- Echinocereus caespitosus (Engelm.) Engelm., Mem. Tour N. Mexico [Wislizenus] 110 (1848).
- Family as entered in IPNI
- Cactaceae