Achillea
ptarmica
PNW
AK
BC
MT
OR
19 specimens from 10 herbaria:
Alaska (3)
British Columbia (6)
Montana (4)
Oregon (5)
12 images from 7 herbaria:
BABY (1)
HPSU (1)
MONT (2)
MONTU (2)
OSC (2)
UAAH (3)
WTU (1)
