It is hard to tell, as i cannot see if the back is fury or not, and I don't know how long the 'leaves' are. I do know that it looks simular to teasle, and I spend hours pulling that out of part of our lawn.
try this form if you know the information.
http://www.botanicalkeys.co.uk/flora/content/SEARCH.ASP
hope this helps,
Ph34r