External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:1200967-2
- Family as entered in IPNI
- Cactaceae
Links
- Nomenclatural link
- Echinocactus cumingii Hopffer
- Duplicate citation of
- Spegazzinia cumingii (Hopffer) Backeb., Kaktus-ABC [Backeb. & Knuth] 298 (1936).