Sium suave
PNW
AK
BC
ID
MT
OR
WA
YK
460 specimens from 25 herbaria:
Alaska (17)
British Columbia (116)
Idaho (86)
Montana (101)
Oregon (68)
Washington (66)
Yukon Territory (6)
211 images from 20 herbaria:
ALA (12)
BABY (1)
BLMVL (1)
BOIS (1)
CIC (9)
CIC-PYNF (2)
HPSU (1)
ID (40)
IDS (15)
MONT (23)
MONTU (37)
PSM (1)
REED (2)
SRP (21)
UAAH (5)
UBC (25)
USFS (1)
VALE (1)
WTU (9)
WWB (4)