Eastern Europe, Southern Europe
South-Central United States
Eastern Austrian Pine, Western Austrian Pine
Penstemon digitalis, Penstemon barbatus, Penstemon heterophyllus
A3, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21
No Available