Sonchus prenanthoides M. Bieb., Fl. Taur.-Caucas. 2: 242. 1808
Sonchus prenanthoides, Fl. Taur.-Caucas. 2: 242. 1808
is basionym for Cicerbita prenanthoides in Bull. Soc. Bot. Genève 2: 121. 1910
is basionym for Lactuca marschallii in J. Bot. 75: 15. 1937
is basionym for Mulgedium prenanthoides, Prodr. 7: 248. 1838
is basionym for Lactuca prenanthoides, Fl. Sredn. Južn. Rossii 2: 167. 1897
is replaced synonym for Lactuca marschallii in J. Bot. 75: 15. 1937
Sonchus prenanthoides, Fl. Taur.-Caucas. 2: 242. 1808