Sonchus arvensis subsp. aquatilis (Pourr.) P. Fourn., Quatre Fl. France: 1042. 1940
Sonchus arvensis subsp. aquatilis, Quatre Fl. France: 1042. 1940
is new combination for Sonchus aquatilis in Hist. & Mém. Acad. Roy. Sci. Toulouse 3: 330. 1788
Sonchus arvensis subsp. aquatilis, Quatre Fl. France: 1042. 1940