External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:45567-2
- Publication
- Phytologia; Designed to Expedite Botanical Publication. New York
- Collation
- 23: 111
- Family as entered in IPNI
- Asteraceae
Links
- Nomenclatural link
- Carduus macrocephalus Desf., Fl. Atlant. 2: 245 (1799).
- Same citation as
- Carduus nutans var. macrocephalus (Desf.) Boivin
- Same citation as
- Carduus nutans var. macrocephalus (Desf.) B.Boivin, Phytologia 23(1): 111 (1972).