Penstemon calycosus Small
Common Name: SMOOTH BEARD-TONGUE
Coefficient of Conservatism: 2
Coefficient of Wetness: 3
Wetness Index: FACU
Physiognomy: Nt P-Forb
Status: T
Penstemon calycosus R. W. Smith

Fields and openings, apparently very rare in Michigan.

The corolla tends more often to pink-violet in this species than in the normally white P. digitalis.

Locations

Kent County
Menominee County
St. Clair County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 15, 2017. http://www.michiganflora.net/species.aspx?id=1956.