External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:77190150-1
- Species Name
- Sonchus ustulatus Lowe, Trans. Cambridge Philos. Soc. 4(1): 22 (1831).
- Publication
- Manual Flora of Madeira and the Adjacent Islands of Porto Santo and the Desertas. London
- Collation
- 1(5): 548
- Family as entered in IPNI
- Asteraceae