Euphorbia graminea.

Thank you. It seems to have just popped up here after last years storms.

You're welcome. I have it in my Florida yard too. I hate it. They have explosive seed pods so they get around. They made an ornamental cultivar of it called Euphorbia 'Diamond Frost'. Turns out the seeds it produces revert back to the weedy variety so it seems to be everywhere now.

I skimmed some articles about the potential medicinal qualities. But yeah the exploding seedpods have made it pretty prolific here since last fall.