Echinocactus horizonthalonius var. obscurispinus Rud.Mey.
, Monatsschr. Kakteenk. 21: 181 (1911). BHL
External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:87442-2
- Publication
- Monatsschrift für Kakteenkunde. Berlin
- Collation
- 21: 181
- Family as entered in IPNI
- Cactaceae
Type Information
- Distribution Of Types
- Mexico (Northern America)