Tephrocactus duvalioides Backeb.
, Cactaceae (Backeberg) no. 38: 250 (1953).
External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:250203-2
- Publication
- Die Cactaceae: Handbuch der Kakteenkunde
- Collation
- no. 38: 250
- Family as entered in IPNI
- Cactaceae