NC wildflower? weed?

Hi, All,

I have this weed? wildflower? that started growing in my new lawn the beginning of July. I have been researching and can't come up with any ID. I hope someone can help.

I'm including 2 pics. These "growths" are about 5-6 inches tall and at the very tips they get tiny...did I mention tiny? yellow flowers. The flowers have 5 rounded petals. The plant itself kind of looks like an upside down whisk broom! They pull up easily after a rain, but I have literally THOUSANDS of them!

Thanks,
New-ish to NC

Here is the next pic, taken looking down at the top of the plant where the bits of yellow you see will become flowers. I should probably see a few with flowers in the next few days and I'll post the flower, too.

Thanks for looking!

Am waiting to see those flowers!
Don't have a clue what this is.
Maybe someone else is sharper. :o)

Clueless here too.

First - don't know what it is.
Second - considering a weed is just a plant growing where you don't want it, I bet this is both a wildflower and a weed! It sounds like a plant that grows in after an area becomes disturbed (new lawn).
Unless you want your lawn to be filled with these, I'd get pulling.
Barb