Equisetum hyemale
PNW
AK
BC
ID
MT
OR
WA
YK
1011 specimens from 37 herbaria:
Alaska (22)
British Columbia (256)
Idaho (156)
Montana (125)
Oregon (126)
Washington (321)
Yukon Territory (5)
515 images from 33 herbaria:
ALA (13)
BABY (1)
BBLM (3)
BOIS (2)
CIC (17)
CIC-PYNF (2)
CRMO (2)
EWU (15)
HJAEF (1)
HPSU (11)
ID (49)
IDE (4)
IDS (19)
LEA (2)
MONT (27)
MONTU (40)
NOCA (2)
PLU (4)
PNNL (3)
PSM (66)
REED (3)
RM (6)
SOC (7)
SRP (36)
UAAH (1)
UBC (8)
USFS (10)
UWB (1)
VALE (4)
WCW (13)
WSTC (2)
WTU (129)
WWB (12)