In Maude Irving and J. B. Webster, 1888, "I'll Twine Mid the Ringlets" list the flower as "Aronatus." The closest flower to "Aronatus" is perhaps Aronia, which is 'chokecherry.'
My grandfather collected a version in 1933 from Beech Mountain. The flower was "Ermeta" in that version which also is not listed as a flower.