Plant Identification: Help with IDing this vine trying to take over my lawn and gardens?, 4 by FireandIceT

FireandIceT wrote:
We live on edge of woods and this vine appeared a couple weeks ago. It is spreading like crazy, mostly in the lawn next to gardens. I imagine it is invasive, but I can\'t quite find anything that positively identifies it. This is a low-growing ground vine, leaves and are darker than they appear in pics, no flowers. I get something like this with yellow flowers in the spring that I try to pull out each year but so far haven\'t been successful in eradicating. So, not sure if this is the same thing coming back for a fall visit - or yet another new visitor to keep the crabgrass company. I wouldn\'t mind keeping it around if it can behave itself. Any help would be appreciated.