Plant ID - Florida Betony?

Hello,

I'm 95% sure this is Florida Betony but my experience with plants only recently went from "that's a weed" to "can I eat it?" I'm in the right area (SE Georgia) and it's taking over the sandy-soiled areas in our gardens.


Here's a group of them. All connected underground.


A closeup of the flower.


One of the many, MANY tubers...


Thanks in advance.

100%

I'm eager to start digging mine but I have no idea when the best time would be. My wife wants to pickle some but I like them raw. I check a few periodically but I guess the tubers are still not filled out well.

Yeap. That plant is taking over my property. I've not yet ventured the courage to taste the tubers although I've been told and read that they are delicious. Any suggestions on how to prepare them?

Tina, I tried them raw and they crunched like a water chestnut. I looked for Crosnes recipes but didn't find much. Maybe the fact that it's an expensive ingredient means normal people don't cook with it? Dunno.