[1] This species is known as arbor vitae in Glacier Park.
[2] This species is known as silver fir in Crater Lake Park.
[3] This species is known as balsam in Glacier and Yellowstone Parks.
[4] This species is known as silver fir in Yellowstone and Glacier
Parks.
[5] This species is known as Oregon yew in Crater Lake National Park and
as yew in Yellowstone and Glacier Parks.