Penstemon albertinus
PNW
BC
ID
MT
OR
WA
620 specimens from 21 herbaria:
British Columbia (35)
Idaho (216)
Montana (367)
Oregon (1)
Washington (1)
383 images from 18 herbaria:
BABY (1)
BBLM (2)
BLMVL (1)
BOIS (1)
CIC (17)
CIC-PYNF (1)
EWU (1)
ID (66)
IDS (19)
LEA (2)
MONT (45)
MONTU (156)
SRP (23)
UBC (4)
WCW (1)
WS (40)
WTU (2)
WWB (1)