Alnus viridis ssp. crispa
PNW
AK
BC
MT
YK
72 specimens from 12 herbaria:
Alaska (25)
British Columbia (31)
Montana (5)
Yukon Territory (11)
37 images from 9 herbaria:
ALA (16)
HPSU (1)
ID (1)
LEA (2)
MONTU (1)
UAAH (12)
UBC (1)
WCW (1)
WTU (2)