External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:45536-2
- Publication
- Proceedings of the Academy of Natural Sciences of Philadelphia. Philadelphia, PA
- Collation
- 1892: 363
- Family as entered in IPNI
- Asteraceae
Remarks
Reference to the basionym indirect (via Cnicus heterolepis (Benth.) A. Gray). Protologue: Carduus heterolepis: Stout and tall … State of Jalisco, Mexico, 1889, C. G. Pringle, n. 2,435; distributed as a Cnicus, with the specific name here continued ...