External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:93568-2
- Publication
- Leaflets of Botanical Observation and Criticism. Washington, DC
- Collation
- 2: 217
- Family as entered in IPNI
- Asteraceae
Type Information
- Distribution Of Types
- Arizona (Southwestern U.S.A., Northern America)