External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:196841-2
- Publication
- Contributions from the University of Michigan Herbarium. Ann Arbor, MI
- Collation
- 9: 375
- Family as entered in IPNI
- Asteraceae
Type Information
- Collector Team
- F.Shreve 9395
- Type Herbaria
- holotype MICH
- Distribution Of Types
- Zacatecas (Mexico, Northern America)