Arnica angustifolia ssp. angustifolia
PNW
AK
BC
WA
YK
119 specimens from 9 herbaria:
Alaska (46)
British Columbia (27)
Washington (1)
Yukon Territory (45)
61 images from 4 herbaria:
ALA (26)
ID (2)
UAAH (10)
UBC (23)