*[http://www.theplantlist.org/tpl1.1/search?q=Sonchus+oleraceus Plant List]
*[http://pfaf.org/user/Plant.aspx?LatinName=Sonchus%20oleraceus Plants for a future]
*[[:en:Sonchus (PROSEA)|PROSEA sur Pl@ntUse]]
*[[Sonchus oleraceus (PROTA)|PROTA sur Pl@ntUse]]
*[http://www.prota4u.org/protav8.asp?fr=1&h=M4&t=Sonchus,oleraceus&p=Sonchus%20oleraceus Prota4U]