spear thistle

== English == === Noun === spear thistle (plural spear thistles) A biennial herb of species Cirsium vulgare. ==== Synonyms ==== bull thistle plumed thistle roadside thistle ==== Translations ==== === References === spear thistle on Wikipedia.Wikipedia Cirsium vulgare on Wikispecies.Wikispecies Category:Cirsium vulgare on Wikimedia Commons.Wikimedia Commons