Sparganium natans
PNW
AK
BC
ID
MT
OR
WA
YK
294 specimens from 23 herbaria:
Alaska (41)
British Columbia (87)
Idaho (44)
Montana (25)
Oregon (28)
Washington (65)
Yukon Territory (4)
123 images from 20 herbaria:
ALA (34)
BABY (2)
BBLM (1)
BLMMD (1)
CIC (6)
EWU (1)
HPSU (3)
ID (26)
IDS (1)
MONT (2)
MONTU (18)
NOCA (5)
PSM (1)
REED (1)
RM (1)
SRP (4)
UAAH (1)
UBC (7)
WTU (7)
WWB (1)