https://digitalcollections.udel.edu/Documents/Detail/sow-thistle/63649
Sow Thistle - University of Delaware Digital Collections
university of delawaresow thistledigitalcollections
https://fsus.ncbg.unc.edu/main.php?pg=show-taxon.php&plantname=Sonchus+oleraceus
Sonchus oleraceus (Common Sow-thistle) - FSUS
sonchus oleraceussow thistlecommon
https://bluestarrgallery.blogspot.com/2015/10/sow-thistle.html
Blue Starr Gallery: Sow Thistle
ceramic artist Linda Starr makes unique contemporary pottery and sculpture with detours into cooking, travel, and gardening.
blue starr gallerysowthistle