Penstemon richardsonii var. dentatus
PNW
OR
123 specimens from 14 herbaria:
Oregon (123)
75 images from 13 herbaria:
COCC (1)
HPSU (2)
ID (4)
IDS (1)
MONTU (1)
OSC (33)
REED (2)
SEF (1)
SOC (1)
SRP (1)
WCW (3)
WS (23)
WTU (2)