Is this related to the hydrangea (its blossom shape reminds me of it), grown in dry, sandy soil?
this is another of our wonderful native wildflowers that I have never seen in the wild. It is Warea cuneifolia in the mustard family, found only in the dry sandhills of the southeastern states. It easily fools botanists because the flowers look very much like Cleome, the spider flower, and I wouldn’t be surprised if they are related. It has been called Carolina pineland cress. You have a very nice sandhill flora in your area, and your pictures continue to be great!
Steven Hill, Ph.D. Botanist SCNPS