Canada's Plant Hardiness Site

Asteraceae daisy family
Sonchus arvensis subsp. uliginosus (M.Bieb.) Nyman 1879, non H.Neumayer 1930
En: smooth perennial sowthistle, smooth sowthistle, marsh sowthistle, corn sowthistle;
Fr: laiteron des champs glabre, laiteron glabre

• [=Sonchus arvensis L. forma glabrescens (Günther, Grab. & Wimm.) Kirp.]
• [=Sonchus arvensis L. var. glabrescens Günther, Grab. & Wimm.]
• [=Sonchus arvensis L. var. uliginosus (M.Bieb.) Trautv.]
• [=Sonchus uliginosus M.Bieb. - basionym]