Pteridium aquilinum
PNW
AK
BC
ID
MT
OR
WA
803 specimens from 33 herbaria:
Alaska (8)
British Columbia (53)
Idaho (181)
Montana (51)
Oregon (185)
Washington (325)
524 images from 28 herbaria:
ALA (3)
BBLM-OWY (1)
BOIS (1)
CIC (16)
CIC-PYNF (4)
EVE (2)
EWU (7)
HJAEF (1)
HPSU (15)
ID (70)
IDE (10)
IDS (29)
LINF (4)
MONT (22)
MONTU (27)
NOCA (5)
PLU (15)
PNNL (1)
PSM (126)
REED (1)
RM (3)
SOC (28)
SRP (25)
UBC (3)
UWB (2)
WCW (9)
WTU (91)
WWB (3)