Grass id

[1982ace]

I posted this in another thread but had some better pictures so I thought I’d post in here. Any guesses on what this is? Looking to spray to get centipede established. This area is by the highway ditch. Whatever it is has spread vigorously

 

[livinoutdoors]

Crabgrass

 

[DSGB]

Carpetgrass

 

[ucfireman]

Not carpet grass.
I got carpet grass and it looks like centipede or saint augustine with thicker leaves. And the seed head is unmistakable.

Folks always say they identify grasses by the seed head so if you can get a pic of that.
The to pic is of 2 grasses it looks like.