Athyrium distentifolium ssp. americanum
PNW
AK
BC
ID
MT
OR
WA
450 specimens from 25 herbaria:
Alaska (5)
British Columbia (51)
Idaho (89)
Montana (51)
Oregon (62)
Washington (192)
321 images from 23 herbaria:
BABY (1)
CIC (12)
CIC-PYNF (2)
COCC (1)
HPSU (6)
ID (45)
IDS (6)
MONT (2)
MONTU (37)
MORA (10)
NOCA (9)
OSC (49)
PLU (3)
PSM (14)
SOC (1)
SRP (5)
UAAH (3)
UBC (1)
VALE (1)
WCW (5)
WS (2)
WTU (102)
WWB (4)