External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:1148510-2
- Species Name
- Rebutia pygmaea (R.E.Fr.) Britton & Rose, Cactaceae (Britton & Rose) 3: 47, fig. 60 (1922).
- Family as entered in IPNI
- Cactaceae