Penstemon
subserratus
PNW
ID
OR
WA
89 specimens from 12 herbaria:
Idaho (4)
Oregon (20)
Washington (65)
19 images from 8 herbaria:
CIC (2)
HPSU (5)
ID (5)
NOCA (1)
RM (1)
SRP (1)
WTU (3)
WWB (1)
