Miami Mist, a native species, has been added to the USWildflowers database (5/10/2014.) Scientific name is Phacelia purshii. Photo below was taken on the east side of Pigeon Mountain in Walker County, GA on May 2, 2014. Go to the Miami Mist detail page for more photos and information.
I discovered some abundant groups of Miami Mist along the trail at Indigo Lake, a part of the Cuyahoga Valley National Park along Riverview Road in Summit County, Ohio. I have never seen them here or anywhere. I can send photos if you want. I didn’t know what they were at first. My photos were taken on May 29, 2014 .