Rhododendron occidentale
PNW
OR
WA
195 specimens from 19 herbaria:
Oregon (193)
Washington (2)
142 images from 15 herbaria:
BLMMD (2)
CIC (1)
COCC (3)
HPSU (8)
ID (6)
LINF (1)
OSC (92)
PLU (2)
PSM (2)
REED (2)
SOC (14)
SRP (6)
UBC (1)
UWB (1)
WWB (1)