Athyrium distentifolium ssp. americanum
PNW
AK
BC
ID
MT
OR
WA
417 specimens from 25 herbaria:
Alaska (5)
British Columbia (50)
Idaho (90)
Montana (58)
Oregon (61)
Washington (153)
258 images from 21 herbaria:
BABY (1)
CIC (11)
CIC-PYNF (2)
HPSU (7)
ID (43)
IDS (6)
MONT (2)
MONTU (37)
NOCA (9)
PLU (3)
PSM (14)
RM (1)
SOC (1)
SRP (5)
UAAH (3)
UBC (1)
VALE (1)
WCW (5)
WSTC (1)
WTU (101)
WWB (4)