Penstemon pruinosus
PNW
BC
ID
MT
WA
282 specimens from 15 herbaria:
British Columbia (20)
Idaho (1)
Montana (3)
Washington (258)
116 images from 11 herbaria:
CIC (1)
ID (9)
IDS (3)
NOCA (6)
PLU (1)
PSM (1)
SRP (2)
WCW (1)
WS (71)
WTU (12)
WWB (9)