Penstemon cyaneus
PNW
ID
MT
OR
WA
419 specimens from 18 herbaria:
Idaho (367)
Montana (49)
Oregon (2)
Washington (1)
237 images from 15 herbaria:
BBLM (1)
BOIS (5)
CIC (30)
CIC-SHO (4)
CRMO (14)
DPP (1)
ID (67)
IDS (50)
MONT (17)
MONTU (14)
RM (1)
SRP (25)
WCW (3)
WTU (1)
WWB (4)