Alpine Fir, Balsam Fir, Subalpine Fir, White Balsam Fir
Abies lasiocarpa var. lasiocarpa
Synonyms: Abies blasamea ssp. lasiocarpa, Abies balsamea var. fallax, Abies bifolia, Abies subalpina, Pinus lasiocarpa
Subalpine fir as seen atop Bull Run Mountain, Bull Run Wilderness........September 14, 2018.
The photo above shows a close-up of one stem
of subalpine fir as seen along the Island Springs Trail immediately to the east
of Little Mt. Adams on the eastern slopes of Mt. Adams.........August
25, 2005. The needles are clustered on the upper two-thirds of the stem
like a brush.
Dorsal surface of needle with a single row
of stomatal bloom and a central groove, more noticeable here towards its base.
Ventral surface of the needle with two broad
rows of stomatal bloom.
The double rows of stomatal bloom of the lower
needle surface of subalpine fir, as seen at treeline beside Crystal Lake on
the western slopes of Mt. Adams.........September 25, 2005.
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Two close-up views of the male pollen cones of subalpine fir as seen near the summit of Lookout Mountain, Badger Creek Wilderness......July 30, 2021.
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Female cones of subalpine fir spotted in forest openings above the Mount Hood Meadows Ski Area, Mount Hood National Forest......July 4, 2021.
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A young subalpine fir encroaching into Grand Meadows, Indian Heaven Wilderness.....September 15, 2023.
Some of the highest elevation subalpine firs on Mount Adams as seen at the base of the terminal moraine of the Adams Glacier, Mount Adams Wilderness..........August 19, 2013.
Paul Slichter