Penstemon teucrioides is a low growing mat forming species of perennial plant that has somewhat woody stems.

[2] Both the leaves and the stems have an somewhat ashy, gray appearance due to dense, pointed, backwards facing hairs.

[3] Penstemon teucrioides has showy, funnel shaped, blue or violet flowers, with a white or yellowish interior and reddish-violet nectar guides.

[6][7][8] The species name, teucrioides, means resembling Teucrium, a genus of plants commonly called germanders.

A reported collection of the species from Rio Arriba County, New Mexico in 1915 is generally regarded as an error.

[3] Though it is not a major source of food, the eastern deer mouse has been observed to eat the seeds of Penstemon teucrioides in September.

[5] Though its range is restricted, grayleaf creeping penstemon is much more widely cultivated in North America and in the United Kingdom.