Rare white flowered mutation
found growing in a disturbed, cattle grazed area on the meadow pond trail @ pleasanton ridge regional park
Small patch on sandy road edge, old field remnant. With Asclepias syriaca, Monarda punctata, M. fistulosa, Rubus allegheniensis, Centaurea stoebe, Sassafras seedlings. Full sun. Calyx lobes different lengths. Fresh flowers have turpentine odor.