*[http://www.theplantlist.org/tpl1.1/search?q=Barbarea+verna Plant List]
*[http://pfaf.org/user/Plant.aspx?LatinName=Barbarea%20verna Plants for a future]
*[[:en:Barbarea verna (PROSEA)|PROSEA sur Pl@ntUse]]
*[http://proseanet.org/prosea/e-prosea.php PROSEA]
*[[Barbarea verna (PROTA)|PROTA sur Pl@ntUse]]