I've just gotten up, having my tea and then I'll take more pics. The really large clumps of leaves at the foundation having been weedeater'd by the DH several days ago, I'll see what I can find. They're growing closely all around the foundation of the house. My first thought with these was cranesbill and I was surprised to see the yellow flowers. This was a rental house for years and the extent of gardening was mowing, so spread all through the grass is this buttercup, violets, what I take to be ox-eye daisy, red clover, white clover, one of the 'wild' strawberries...all of which I like and so would be happy to leave, but all lawn will eventually come out and be gravel paths around the plantings.
edited to add that the closest I'd come to 'buttercup' before was the oxalis pes-caprae (Bermuda Buttercup) of our previous property. I didn't mind that either, with a couple of acres of it, you may as well give in...lol..plus it is pretty and the bees love it, so....