Erigeron acris
PNW
AK
BC
ID
MT
OR
WA
345 specimens from 21 herbaria:
Alaska (63)
British Columbia (90)
Idaho (53)
Montana (49)
Oregon (21)
Washington (61)
221 images from 18 herbaria:
BLMVL (1)
CIC (1)
CIC-PYNF (1)
HPSU (2)
ID (29)
IDS (4)
LEA (1)
MONT (15)
MONTU (22)
NOCA (2)
OSC (11)
PSM (2)
SRP (4)
UAAH (41)
UBC (33)
WS (1)
WTU (48)
WWB (3)