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
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.