Oenothera serrulata
PNW
ID
MT
WA
86 specimens from 8 herbaria:
Idaho (1)
Montana (83)
Washington (2)
61 images from 8 herbaria:
BOIS (1)
ID (3)
MONT (31)
MONTU (18)
RM (2)
USFS (4)
WTU (1)
WWB (1)