Penstemon
pennellianus
PNW
OR
WA
73 specimens from 10 herbaria:
Oregon (21)
Washington (52)
58 images from 8 herbaria:
COCC (1)
ID (6)
NEZ (2)
PSM (2)
SRP (1)
WCW (2)
WS (35)
WTU (9)
