Doesn't look like nutsedge or its cousin, green kyllinga. Does the weed go to seed? And if so, can you post a picture of the seed head or flower?

And for your next pictures, take them on an overcast day and/or in the shade. In the sunlight there's too much contrast between the bright reflected green and the black shadows.

Where are you in SoTX?

Freshly mowed so I'll let a patch get out of control to see if it goes to seed. I'm in Austin. I've had plenty of bermuda lawns in Tx and never have seen this... I just got the house in November and the previous owner had tried to transplant St Aug into the lawn(which I killed off). I can only imagine if he picked up some crappy seed somewhere and dumped it in the lawn. It grows very grassy, almost looks like a cool season breed to me...

Nope, not nutsedge. Almost looks like giant Bermuda but that would be on stolons...

Does it have a strong aroma when you pick one?Ive been battling this same weed.They usually have 2 or 3 branches branching out at the root, so are usally easy to pull after a rain..It has lime green leaves.I always thought it was nutsedge but I guess I was wrong.

Thanks for input so far... I'm going to dig up a patch this weekend to find real root structure. I fear it might be common Bermuda? Previous owner may have bought seed to fill in empty spots. I follow the Bible to heart...water little...mow low(except before these pics) and it's still spreading like wild fire..

Pray it isn't torpedo

If its torpedo I'll be covering the entire section with a black tarp for a week... I ain't playing with that stuff. Luckily its only a 3x3 area where its growing..

I just googled nutsedge.Mine is defiantly nutsedge and I am willing to bet money yours is too.Heres what mine looks like

Nah, I am already fighting nutsedge and it doesnt compare... notice how sedge pops 3 shoots from a central point.... my pictures show single shoots coming off at different points on the plant

@reeljake amazing results with ender... never seen something kill it so fast.

Back to my odd grass... more pictures. I notice today it does have stolons very close tot he surface, they are thin but strong and usually break off when pulling.

As I said before, celsius and sedgeender hurt it... going out now to spray higher than normal dose of celsius on it as a test.

I have a tip for future picture posts. Never take a picture of a garden in direct sunlight. Take pictures on overcast days or in the shade or when the sun is low on the horizon. There is far too much contrast between the bright reflected sunlight and the deep black shadows. Here's an example

Dchall, this was 100% shade in the morning...you know our Tx sun :(

Seed head as requested... It's not a tall one...seeds a few inches off the ground

I'm with reeljake. Looks like Torpedo

Yep confirmed; it is torpedo, the seed head finally gave it away. I had never seen it in Texas bermuda after living in 3 houses...

https://plants.ifas.ufl.edu/wp-content/uploads/images/panrep/panrep2.jpg

Anyways got some 75% Quinclorac on the way to take care of it..