Cardamine hirsuta, I believe.

Known as shotweed, hairy shotweed & any number of other common names.

Here is a link that might be useful: Cardamine hirsuta

This post was edited by carrieb on Sat, Apr 12, 14 at 19:30

many thanks. it looks pretty now but definitely a weed it seems

weed is an interesting word ...

you dont have much of a lawn there... and neither do i now that i bought former horse pasture. frankly.. the grass browns by july.. and the only things green is the weeds.. lol ...

but if you want to become a lawn warrior... growing a thick lush lawn., is one way to dissuade things growing in the soil in between plants ... that and a lot of weed killer.. lol ...

my point being.. its only a weed.. if it serves no other purpose.. and sometimes they do ...

ken

Most commonly known as bittercress or hairy bittercress. Not everyone thinks of it as a weed, but if it's taking over your lawn......

This is a shallow rooted annual plant and that gives you a bit of an edge. This may sound simplistic, but best way to keep bittercress out of your lawn is to find out why your permanent grass is so weak and fix it.

Getting your lawn thick and full and healthy is more important in terms of weed management than anything.