Sonchus maculigerus
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 maculigerus in Acta Soc. Sci. Fenn., Ser. B, Opera Biol. 1(2): 169. 1932