This decumbent subshrub is known only from open boulder-cobble bars of the Cumberland Plateau: along the Big South Fork of Cumberland Rv. in Ky. and Tenn.; along the Obed and Emory Rv. in Tenn. [Another globally rare species in ths habitat is Marshallia grandiflora.] The five other species of Conradina occur only in scrubby vegetation on sandhills in s. Miss., s. Ala. and Fla. (Sm, W).