Corylus cornuta
PNW
BC
ID
MT
OR
WA
559 specimens from 30 herbaria:
British Columbia (104)
Idaho (16)
Montana (1)
Oregon (231)
Washington (207)
355 images from 25 herbaria:
BABY (1)
CIC (4)
COCC (5)
EWU (17)
HJAEF (3)
HJAEFB (1)
HPSU (19)
ID (39)
IDS (2)
LEA (1)
LINF (2)
MORA (5)
NOCA (4)
OSC (93)
PLU (10)
PSM (9)
REED (6)
SOC (17)
SRP (5)
UBC (19)
UWB (2)
WCW (2)
WS (10)
WTU (70)
WWB (9)