External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:251054-2
- Publication
- Cactaceae, The (Britton & Rose). Descriptions and illustrations of plants of the cactus family
- Collation
- 4: 9, fig. 8
- Family as entered in IPNI
- Cactaceae
Links
- Nomenclatural link
- Echinocactus nidulans Quehl, Monatsschr. Kakteenk. 21: 119 (1911).
- Same citation as
- Thelocactus nidulans Britton & Rose, Cactaceae (Britton & Rose) 4: 9 (1923).
- Same citation as
- Thelocactus nidulans (Quehl) Britton & Rose