Penstemon
cyaneus
PNW
ID
MT
OR
WA
424 specimens from 18 herbaria:
Idaho (375)
Montana (46)
Oregon (2)
Washington (1)
260 images from 15 herbaria:
BBLM (1)
BOIS (5)
CIC (31)
CIC-SHO (4)
CRMO (14)
DPP (1)
ID (80)
IDS (51)
IFBLM (3)
MONT (18)
MONTU (14)
SRP (30)
WCW (3)
WTU (1)
WWB (4)