Penstemon pruinosus
PNW
BC
ID
MT
WA
251 specimens from 16 herbaria:
British Columbia (16)
Idaho (1)
Montana (4)
Washington (230)
41 images from 10 herbaria:
CIC (1)
ID (9)
IDS (3)
NOCA (6)
PLU (1)
PSM (1)
SRP (2)
WCW (1)
WTU (8)
WWB (9)