Alnus incana
PNW
AK
BC
ID
MT
OR
WA
YK
1241 specimens from 36 herbaria:
Alaska (111)
British Columbia (153)
Idaho (369)
Montana (212)
Oregon (191)
Washington (192)
Yukon Territory (13)
655 images from 30 herbaria:
ALA (89)
BBLM (4)
BOIS (11)
CIC (18)
CIC-PYNF (1)
CIC-SHO (1)
CRMO (6)
EWU (21)
HJAEF (1)
HPSU (5)
ID (157)
IDE (2)
IDS (53)
MONT (35)
MONTU (77)
NOCA (4)
PSM (4)
REED (3)
RM (5)
SBLM (1)
SOC (14)
SRP (61)
UAAH (8)
UBC (18)
USFS (21)
VALE (6)
WCW (14)
WSTC (2)
WTU (9)
WWB (4)