Thelocactus bicolor var. pottsii (Salm-Dyck) Backeb.
, Cactaceae (Backeberg) 5: 2809 (1961).
External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:251012-2
- Species Name
- Thelocactus bicolor (Galeotti ex Pfeiff.) Britton & Rose, Bull. Torrey Bot. Club 49: 251 (1922).
- Publication
- Die Cactaceae: Handbuch der Kakteenkunde
- Collation
- 5: 2809
- Family as entered in IPNI
- Cactaceae