Swertia perennis
PNW
AK
BC
ID
MT
OR
WA
322 specimens from 20 herbaria:
Alaska (51)
British Columbia (23)
Idaho (111)
Montana (105)
Oregon (29)
Washington (2)
269 images from 17 herbaria:
BABY (2)
BOIS (6)
CIC (14)
CIC-PYNF (5)
ID (46)
IDS (9)
LEA (1)
LINF (1)
MONT (27)
MONTU (46)
SRP (10)
UAAH (8)
UBC (1)
WCW (1)
WS (33)
WTU (55)
WWB (4)