Sonchus webbii
Synonymy
Source: Greuter, W. (2006+): Compositae (pro parte majore). – In: Greuter, W. & Raab-Straube, E. von (ed.): Compositae. Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Sonchus webbii in Webb & Berthelot, Hist. Nat. Iles Canaries 3(2): t. 136. 1848