The Eastern Smooth Beardtongue is also known as Purple Beardtongue.

Penstemon laevigatus is an upright, smooth to hairy perennial. Its preferred habitat is roadsides, prairies, pine lands, terrace soil, and wooded areas. distribution is throughout the Escambia region.

The leaves are alternate on the stem, consisting of one whole part, sessile, lance-like to ovate, no teeth and no lobes (may have an occasional tooth), acuminate (tapering to a long or short point).

The flowers are a panicle. The calyx is 5-lobed; the corolla bilabiate, with the upper lip 2-lobed and the lower lip 3-lobed. The flowers are white to pink, 4 stamens. Flowers occur in the spring.

Fruit is a capsule.