Sounds like wild geranium. Check the link.

Deanna

Here is a link that might be useful: Weed Alert

Hi Mindy,
I'm betting the plant you're describing doesn't look like the wild geranium linked above. If yours is closer to the ground and really cemented in, I've had it and you better get rid of it fast. I just found two plants of it, and no idea where it came from. They are nowhere near where where I found it before.
I id'd once, and I'll figure where I found the information.and report back if I have any success.
I'm going to google "pernicious weed"

I kept thinking 'ranunculous' but distrusted my memory. But the word showed up once in the google search, and By George, I got it. It may not be the plant in your garden, but it is the one masquerading as a geranium in mine.
The leaves are thicker, tougher. If you wait long enough it will get a small shiny buttercup flower.

And it has an uncanny ability to get right next to the choice plant which nearly comes out with the weed when you point and shovel. Which leads to the question: did the weed come in with the plant? Likely

OUCH; i hope not one of ours.

Thanks, folks, for answering my unasked question. . .these little guys have been
popping up around the edges of my vegetable patch for a couple of years,
often right alongside clumps of Geranium 'Wargrave's Pink'. When I googled
Ranunculus repens, I was surprised to read that the seeds often travel with
hay - presumably, they like the same growing conditions - guess what I use as
a heavy mulch on my veggie patch? HAY !

Carl

hmmm. how about seaweed this yr?or salt marsh hay?

mindy

I've got some Ranunculus repens in the yard I've been trying to get rid of and there is some that is spreading rampantly along the edge of a nearby field -

{{gwi:203655}}

Sue, that is a lot of weed.