Penstemon cardwellii
PNW
OR
WA
300 specimens from 14 herbaria:
Oregon (263)
Washington (37)
39 images from 11 herbaria:
CIC (1)
HJAEF (5)
HJAEFB (2)
HPSU (7)
ID (14)
IDS (1)
SOC (3)
SRP (3)
WCW (1)
WSTC (1)
WTU (1)