Escaped Ornamental Is My Main Ground Cover ,What Is It?

So I just chopped and dropped my back yarden, most of the ground cover is this:

Any idea what this is? If I can use it for more than green manure, I would like to...

I think it's dayflower (Commelina) or a close relative. It should get little blue or blue and white three-petaled flowers which only open in the mornings. Frost tender annual. Marginally edible.

I started a thread on its uses, check it out here.

Woohoo! I love you guys! Best yarden news I've heard since the finding out Rose of Sharon is edible!
Yeah, little blue flowers, that"s the one.
Thank you for the Id and the link...