By Vileve
Middlesex,
United Kingdom 
can anyone identify this weed? I had loads of it when my gdn was neglected for a while and dug it all out!!?? it is still popping its head up everywhere and am pulling it up as soon as seen. The small fls are yellow and the seed heads (i've discovered) are made up of tiny hooked seeds that attach themselves to clothing rather like a burr but much smaller. I've looked in all my books and the internet but can't find it. the pics don't show up the fine hooks on the seed head. and there are two types of leaf on the same plant
27 Jul, 2010
Answers
It's Geum urbanum - the flowers look like one of the Potentillas, as do the leaves to some extent, so that was my first thought - but the burr-like seed-heads and upright habit ID it as the closely related Geum:
http://upload.wikimedia.org/wikipedia/commons/b/bb/Geum_urbanum_Sturm44.jpg
27 Jul, 2010
Definitely not ragwort with those leaves. Could by Ilex, pix is so bad it is hard to decide.
27 Jul, 2010
Better pic, perhaps, is at:
http://www.botanicalkeys.co.uk/flora/content/species.asp?1270
27 Jul, 2010
Not ragwort - I think it's avens, that has hooky seeds, strawberry like leaves and comes up determinedly.
27 Jul, 2010
Ilex is correct. There is a lot of it in the garden of a customer of mine I have done work for. I have just left plants of it in the wilder part.
27 Jul, 2010
Clever Ilex and beattie... it is Geum urbatum / herb bennet/ wood avens/ all the same plant. so easy to identify when you know the name!! it is in my book ' the Concise British Flora in Colour' yet I couldn't find it. Thanks again
28 Jul, 2010
bit blurry, but is it ragwort? try googling that to see if the pictures match what you have?
27 Jul, 2010