External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:134559-2
- Publication
- Transactions of the Academy of Science of Saint Louis. St. Louis, MO
- Collation
- 5: 506
- Family as entered in IPNI
- Asteraceae
Links
- Nomenclatural link
- Lactuca leucophaea A.Gray
- Nomenclatural link
- Sonchus spicatus Lam.
- Same citation as
- Lactuca spicata Hitchc., Trans. Acad. Sci. St. Louis 5: 506 (1892).