External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:77134671-1
- Species Name
- Pseudomaihueniopsis nigrispina (K.Schum.) Guiggi, Cactology 3(Suppl. 5): 1 (2013).
- Publication
- Cactology. New Bulletin for Cactus Research. Castellanza
- Collation
- 3(Suppl. 5): 1
- Date of Publication
- 4 Dec 2013
- Family as entered in IPNI
- Cactaceae