External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:280903-2
- Publication
- American Midland Naturalist; devoted to natural history, primarily that of the prairie states.
- Collation
- 36: 662, fig
- Family as entered in IPNI
- Cactaceae
Type Information
- Type Herbaria
- lectotype F
- Distribution Of Types
- Utah (Southwestern U.S.A., Northern America)
- Type Specimen Note
- Photograph by Daston
Nomenclatural Notes
Type collection by Gordon Marsh, Jan 1946, cited in protologue as being at F