Penstemon richardsonii var. richardsonii
PNW
BC
OR
WA
306 specimens from 15 herbaria:
British Columbia (36)
Oregon (84)
Washington (186)
168 images from 13 herbaria:
CIC (2)
COCC (1)
EWU (1)
HPSU (1)
ID (16)
NOCA (2)
OSC (33)
SOC (1)
SRP (4)
UBC (1)
WS (95)
WTU (8)
WWB (3)