Pteridium aquilinum
PNW
AK
BC
ID
MT
OR
WA
813 specimens from 33 herbaria:
Alaska (9)
British Columbia (56)
Idaho (175)
Montana (43)
Oregon (191)
Washington (339)
645 images from 30 herbaria:
BBLM-OWY (1)
BOIS (1)
CIC (17)
CIC-PYNF (4)
COCC (4)
EVE (2)
EWU (7)
HJAEF (1)
HPSU (17)
ID (77)
IDE (10)
IDS (29)
LINF (4)
MONT (22)
MONTU (27)
MORA (7)
NOCA (5)
OSC (88)
PLU (15)
PSM (120)
REED (1)
SAJH (1)
SOC (31)
SRP (32)
UBC (3)
UWB (2)
WCW (9)
WS (6)
WTU (99)
WWB (3)