External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:87781-2
- Publication
- Memoir of a Tour to Northern Mexico: connected with Col. Doniphan's expedition, in 1846 and 1847; with a scientific appendix and three maps. Washington, DC
- Collation
- 111
- Family as entered in IPNI
- Cactaceae
Links
- Nomenclatural link
- Echinomastus unguispinus (Engelm.) Britton & Rose
- Same citation as
- Echinocactus unguispinus Engelm.
- Same citation as
- Echinocactus unguispinus Engelm., in Wisliz. Tour North Mexico 111.
- Same citation as
- Echinocactus unguispinus ( ex Wislizenus) Engelm., Mem. Tour N. Mexico [Wislizenus] 111 (1848).