Dryopteris expansa
PNW
AK
BC
ID
MT
OR
WA
YK
846 specimens from 20 herbaria:
Alaska (152)
British Columbia (149)
Idaho (81)
Montana (76)
Oregon (101)
Washington (274)
Yukon Territory (13)
501 images from 17 herbaria:
ALA (63)
BABY (3)
HJAEF (1)
HJAEFB (1)
HPSU (5)
ID (28)
MONT (17)
MONTU (31)
NOCA (8)
PSM (78)
RM (13)
SOC (2)
SRP (5)
UAAH (20)
UBC (13)
USFS (1)
WTU (212)