Hi, Dr. Hill,
Thank you for your most recent identifications. This flower was located on July 2, Fall Line, remote country road in full sun. I stopped to photograph something else much showier, then noticed these dainty flowers. I appreciate your time.
your plant is Lythrum lanceolatum, also called Lythrum alatum var. lanceolatum, the winged loosestrife. It is a nice native plant usually found in wet marshes and ditches.
I hope this helps. I greatly appreciate the ‘thank you’ – you are most welcome.
Steve Hill, Botanist, SCNPS