Solved Help Identifying This Weed

Hi, I was wondering if anyone would help me by telling me just what this weed is that's been spreading across my front garden recently? It seems to be a ground crawler of some type and it's growing in clumps all over the place, even between paving stones.

Thanks.

 

Black medick or Medicago lupulina. Lawn weed killer is supposed to be effective against it.

 

Our grass is full of it, as well as clover etc etc ......cannot be called a lawn.
Black medick seems to be hating the hot dry weather and is dying.

 

Individual plants of this medick can be pulled out quite easily, if you can kneel or bend down to do it. They grow flat against the ground so you just have to lift underneath them, work out where the stem going into the soil is and give that a good yank.

My lawn is full of them too but about to be converted into a flowerbed.