Erigeron acris
PNW
AK
BC
ID
MT
OR
WA
YK
573 specimens from 23 herbaria:
Alaska (240)
British Columbia (90)
Idaho (58)
Montana (70)
Oregon (18)
Washington (63)
Yukon Territory (34)
359 images from 19 herbaria:
ALA (193)
BLMVL (1)
CIC (1)
CIC-PYNF (1)
HPSU (2)
ID (27)
IDS (4)
LEA (1)
MONT (15)
MONTU (22)
NOCA (2)
PSM (2)
RM (5)
SRP (4)
UAAH (36)
UBC (20)
USFS (3)
WTU (17)
WWB (3)