The flowers of these plants are mostly deep blue, versus bluish-white (or lavendar) to pale yellowish-white (creamy) in typical plants; flower centers are paler in all plants. This variant does not appear to have a published name, but is mapped here to show its southern distribution in Ky. and to prompt further study. B noted: for the species: "Flowers occasionally are violet-blue, apparently where the plants are growing on red soil." Only a few other authors have included "deep" blue in their descriptions (Cr.).