Penstemon cardwellii
PNW
OR
WA
313 specimens from 14 herbaria:
Oregon (273)
Washington (40)
210 images from 13 herbaria:
CIC (1)
COCC (1)
HJAEF (5)
HJAEFB (2)
HPSU (8)
ID (14)
IDS (1)
OSC (133)
SOC (3)
SRP (3)
WCW (1)
WS (33)
WTU (5)