Some interesting information I read on wildflower.org is that the white flowers have purple lines that go down the “throat” or tube of the flower, which are like little sight or landing lines for bees for pollination. In addition, there is a theory that this flower once may have only grown in the Mississippi river delta.
Alternate Names: Mississippi Penstemon, Mississippi Beardtongue, Smooth White Penstemon, Smooth White Beardtongue, Talus Slope Penstemon, Talus Slope Beardtongue, Foxglove Penstemon Size: 3'-5' tall Family: Plantaginaceae (Plantain Family) Habitat: Likes sunny prairies and fields. Identification: The foliage of this robust perennial can be semi-evergreen in the South. Its erect, 2-5 ft. stems are topped with stalked clusters of white, tubular, unevenly five-lobed flowers which rise in pairs from the upper leaf axils. From Wildflower.org Blooms May-July.