I agree, "aronatus" (meaning "plough-born") puts it into a spring timeframe and the botanical name for this tulip-family wildflower is literally white flower blue-eyed. Guessing this was commonly known as an aronatus and that the rarity of the flower caused us to mislay the common name in favor of "alba coerulea oculata." Pictures of it are a perfect match to the song ("I'll twine 'mid the ringlets," not the mingled/mangled Carter family version "Wildwood flower").