Sonchus webbii Sch. Bip. in Webb & Berthelot, Hist. Nat. Iles Canaries 3(2): t. 136. 1848
Sonchus webbii in Webb & Berthelot, Hist. Nat. Iles Canaries 3(2): t. 136. 1848
is basionym for Wildpretia webbii in Vieraea 25: 204. 1997
is basionym for Lactucosonchus webbii in Cabezón & al., Index Sem. Hort. Acclim. Pl. Arautapae 1968: 53. 1969
is basionym for Atalanthus webbii in Sommerfeltia 17: 6. 1993
Sonchus webbii in Webb & Berthelot, Hist. Nat. Iles Canaries 3(2): t. 136. 1848