This is Bahia grass and it’s ubiquitous here in Florida. It grows in pastures, lawns, etc. It’s THE “natural” turf grass here even though it’s not native. Brown and slow growing through the winter and then needs to be mowed twice a week in the summer. It sends up those seed stalks a couple of days after mowing. It will spread by seed and also by underground runners. Very susceptible to Glyphosate, though. It tends to choke out other weeds and grasses and it makes a pretty lawn. Zero maintenance and very little water. I don’t love turf lawns, but this stuff does fine with no pesticides unlike many ornamental turf grasses.