External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:247485-1
- Publication
- Bulletin of the Torrey Botanical Club. New York
- Collation
- 25(7): 379
- Date of Publication
- 15 Jul 1898
- Family as entered in IPNI
- Asteraceae