External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:174802-2
- Publication
- Report (Annual) of the Missouri Botanical Garden. St. Louis
- Collation
- 21: 165 (tt. 19-20)
- Family as entered in IPNI
- Cactaceae
Type Information
- Distribution Of Types
- Texas (South-Central U.S.A., Northern America)
Remarks
According to D. J. Pinkava et al. (J. Arizona-Nevada Acad. Sci. 33: 150. 2001), O. alta is a hybrid between: O. engelmannii & O. stricta