Penstemon digitalis (known by the common names foxglove beard-tongue,[3] foxglove beardtongue, talus slope penstemon,[4] and white beardtongue[5]) is a species of flowering plant in the plantain family, Plantaginaceae.

According to Francis W. Pennell it is a native of the Mississippi basin and its occurrences in Canada and the eastern United States are introductions.

[6] Penstemon digitalis is a glabrous 3 to 5 foot tall herbaceous plant with opposite, shiny green, simple leaves, on slender, purple stems.

[7][9] Penstemon digitalis was scientifically described and named by John Sims using an earlier incomplete description by Thomas Nuttall.

It is still recognized in publications such as Flora of the Southeastern United States,[10] but it is regarded as a synonym by Plants of the World Online.

The natural distribution of Penstemon digitalis is in the central United States, largely in the watershed of the Mississippi River.

[2] The conservation organization NatureServe evaluated Penstemon digitalis in 2016 and found it to be secure (G5) in its natural range.

[7] It is recommended for easy use in gardens from the Midwest to the Atlantic coast and Pacific Northwest by the American Penstemon Society.