Equisetum scirpoides
PNW
AK
BC
ID
MT
WA
YK
461 specimens from 19 herbaria:
Alaska (147)
British Columbia (206)
Idaho (1)
Montana (40)
Washington (41)
Yukon Territory (26)
230 images from 14 herbaria:
ALA (126)
BOIS (1)
ID (6)
LEA (1)
MONT (6)
MONTU (22)
NOCA (4)
PLU (2)
PSM (4)
SRP (1)
UAAH (8)
UBC (9)
WTU (37)
WWB (3)