Betula papyrifera
PNW
AK
BC
ID
MT
OR
WA
YK
679 specimens from 28 herbaria:
Alaska (127)
British Columbia (149)
Idaho (97)
Montana (107)
Oregon (23)
Washington (148)
Yukon Territory (28)
343 images from 24 herbaria:
ALA (120)
BABY (2)
BLMVL (1)
CIC-PYNF (1)
EWU (8)
HPSU (1)
ID (57)
IDS (4)
LEA (2)
MONT (25)
MONTU (26)
NOCA (12)
PLU (3)
PSM (6)
REED (1)
RM (1)
SRP (15)
UAAH (7)
UBC (13)
USFS (2)
UWB (3)
WCW (7)
WTU (13)
WWB (13)