Foxglove Beardtongue (Penstemon digitalis) August 16, 2020 1950 × 2437 Foxglove Beardtongue (Penstemon digitalis) Foxglove Beardtongue (Penstemon digitalis). Plantaginaceae family. Non-native, naturalized. Throughout. This was growing in Shawangunk Grassland. June, 2019.