Oenothera elata
PNW
ID
MT
OR
WA
174 specimens from 20 herbaria:
Idaho (90)
Montana (1)
Oregon (43)
Washington (40)
81 images from 17 herbaria:
BBLM (3)
BOIS (2)
CIC (17)
CIC-PYNF (1)
CRMO (2)
HPSU (2)
ID (16)
IDE (4)
IDS (6)
MONT (1)
PLU (8)
REED (1)
SRP (9)
VALE (4)
WCW (2)
WTU (1)
WWB (2)