By Bernard
Cambridgeshire,
United Kingdom 
Weed query 8.
I hope this a good enough picture for an identification. If it isn't, I'll to do a better one.
16 Apr, 2011
Answers
I would have said sow thistle, but that could be a different name for the same plant.
17 Apr, 2011
It's a weed alright! Name is more of a problem - has yellow flower a bit like a dandelion.
I think it might be hawksbeard.
16 Apr, 2011