Name: greene Savannah, GA (Sunset 28) (Zone 8b) I have no use for internet bullies!
Thanks you, hadn't thought about the essential oil.
Since writing the original post, I have found several more places where this plant is growing. The flowers are like bright beacons along the edges of the roads and fields.
Sunset Zone 28, AHS Heat Zone 9, USDA zone 8b~"Leaf of Faith"