Alnus incana ssp. tenuifolia
PNW
AK
BC
ID
MT
OR
WA
672 specimens from 28 herbaria:
Alaska (24)
British Columbia (75)
Idaho (213)
Montana (82)
Oregon (171)
Washington (105)
384 images from 24 herbaria:
BBLM (2)
BOIS (1)
CIC (18)
CRMO (6)
EWU (5)
HPSU (4)
ID (58)
IDS (35)
MONT (3)
MONTU (66)
NOCA (4)
OSC (72)
REED (3)
SEF (2)
SOC (14)
SRP (49)
TFBLM (1)
UAAH (8)
UBC (13)
VALE (2)
WCW (3)
WS (4)
WTU (9)
WWB (2)