I've been working in my lawn. I just bought the house last August and when I moved in the backyard was beautiful and lush. And the homeowner had a yard company spraying it. So I thought I could skip spraying.
Well, this spring when the snow melted, I had 2 different colors of grass. The south side of the backyard is much more lush and green and weed-free. The north side? Lots of creeping charlie. So I suspect the homeowner had purchased some sod for the lush side of the lawn.
At first I simply pulled it out when I saw it. But then it multiplied! Eek. So I'm now doing a combination of hand-spraying and hand-pulling. You'll notice, though, all the little roots and how far the newest runner runs (on the left side of the photo) to set down new roots.
The name "Gill" comes from the French guiller which means "to ferment." Evidently the leaves were once used to help ferment or flavor beer.