Can anyone identify this weed?

samanya, Feb 2, 2:06am
Looks a lot like hydrocotyl.

stevee6, Feb 2, 2:07am
Looks like it to me too - and it's a pig. Lots of thready roots.

ry5, Feb 2, 2:10am
Thanks, I really need to get in a weed it all out, it's starting to take over.My plants are all quite stunted this year, although plenty of fruit on them.

jofes, Feb 2, 10:27pm
Its a shit of a weed and I find it very hard to get rid of !

jphs, Feb 20, 5:42pm
it's PITA weed
stands for Pain In The Arse weed.