External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:8556-1
- Publication
- Prodromus Systematis Naturalis Regni Vegetabilis ... (DC.)
- Collation
- 5: 633
- Date of Publication
- 1-10 Oct 1836
- Family as entered in IPNI
- Asteraceae