Equisetum variegatum ssp. variegatum
PNW
AK
BC
ID
MT
OR
WA
82 specimens from 14 herbaria:
Alaska (8)
British Columbia (24)
Idaho (6)
Montana (7)
Oregon (4)
Washington (22)
18 images from 9 herbaria:
HPSU (1)
ID (5)
IDS (1)
MONT (1)
NOCA (2)
OSC (1)
SRP (2)
WTU (4)
WWB (1)