Penstemon calycosus Small
Family: Plantaginaceae
Long-Sepal Beardtongue,  more...
Penstemon calycosus image
Paul Rothrock  
From Flora of Indiana (1940) by Charles C. Deam
This is our most common species and could possibly be found in every county of the state, although it is less frequent in our northern counties. While it prefers moist, alluvial soil along streams and bases of slopes, it is found also on dry, wooded slopes, along roadsides and railroads, and in fallow fields.