https://fsus.ncbg.unc.edu/main.php?pg=show-taxon.php&plantname=Sonchus+oleraceus
Sonchus oleraceus (Common Sow-thistle) - FSUS
sonchus oleraceussow thistlecommon
https://newyork.plantatlas.usf.edu/plant.aspx?id=491
Sonchus oleraceus - Species Page - NYFA: New York Flora Atlas
The New York Flora Atlas is a source of information for the distribution of plants within the state, as well as information on plant habitats, associated...
sonchus oleraceusnew yorkspeciesnyfaflora