Crataegus monogyna
PNW
BC
ID
MT
OR
WA
233 specimens from 23 herbaria:
British Columbia (42)
Idaho (9)
Montana (3)
Oregon (109)
Washington (70)
134 images from 20 herbaria:
BABY (1)
BLMMD (1)
CIC (3)
COCC (1)
EWU (2)
HPSU (34)
ID (2)
MONTU (3)
NOCA (3)
OSC (29)
PSM (1)
SAJH (1)
SEF (1)
SOC (1)
SRP (12)
UBC (6)
UWB (3)
WS (4)
WTU (25)
WWB (1)