External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:87419-2
- Species Name
- Echinocactus helophorus Lem.
- Publication
- Cactearum Genera Nova Speciesque Novae et omnium in Horto monvilliano cultarum ex affinitatibus naturalibus ordinatio nova indexque methodicus. Lutetiis-Parisiorum
- Collation
- 13
- Family as entered in IPNI
- Cactaceae