External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:181534-1
- Publication
- Synoptical Flora of North America. New York
- Collation
- 1(2): 179
- Date of Publication
- Jul 1884
- Family as entered in IPNI
- Asteraceae
Nomenclatural Notes
Status: nom. inval. pro syn. of A. oblongifolius var. rigidulus A. Gray