[True Firs: The Genus Abies in the Cascade Mountains of Oregon and Washington]

California White Fir, Sierra White Fir

Abies concolor x Abies grandis

Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana

California White Fir, Sierra White Fir: Abies concolor x Abies grandis (Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana)

California white fir as seen along the access road to the lookout on Antelope Mountain, Malheur National Forest.......June 4, 2011.

California White Fir, Sierra White Fir: Abies concolor x Abies grandis (Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana) - Cone of California White Fir, Sierra White Fir: Abies concolor x Abies grandis (Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana)

California White Fir, Sierra White Fir: Abies concolor x Abies grandis (Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana) - California White Fir, Sierra White Fir: Abies concolor x Abies grandis (Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana)

California White Fir, Sierra White Fir: Abies concolor x Abies grandis (Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana) - California White Fir, Sierra White Fir: Abies concolor x Abies grandis (Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana)

California white fir observed atop Grizzly Peak, Cascade-Siskiyou National Monmument.......October 14, 2019. The cone was observed along the Pacific Crest Trail on the south side of Mt. Ashland, Rogue River-Siskiyou National Forest.....October 15, 2019.

Ventral surface of needles of California White Fir, Sierra White Fir: Abies concolor x Abies grandis (Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana) - Dorsal surface of needles of California White Fir, Sierra White Fir: Abies concolor x Abies grandis (Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana)

Ventral surface (left) and dorsal surface (right) of the needles of California white fir as seen along the access road to the lookout on Antelope Mountain, Malheur National Forest.......June 4, 2011. Note the 2 lines of white bloom running the length of the lower surface of the needle and the central groove (with hints of whitish bloom) on the top of the needle.

California White Fir, Sierra White Fir: Abies concolor x Abies grandis (Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana)

Pollen cones of California white fir knocked to the ground by violent hail storms that swept across Lookout Mountain a few days before. Photographed along Trail #808A, Ochoco National Forest.......May 25, 2018.

Ventral surface of the needles of California White Fir, Sierra White Fir: Abies concolor x Abies grandis (Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana) - Dorsal surface of the needles of California White Fir, Sierra White Fir: Abies concolor x Abies grandis (Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana)

Upper surface of the needles of California White Fir, Sierra White Fir: Abies concolor x Abies grandis (Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana)

California White Fir, Sierra White Fir: Abies concolor x Abies grandis (Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana) - California White Fir, Sierra White Fir: Abies concolor x Abies grandis (Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana) - California White Fir, Sierra White Fir: Abies concolor x Abies grandis (Synonyms: Abies concolor, Abies concolor var. concolor, Abies concolor var. lowiana, Abies lowiana)

Additional views of several California white fir as seen at about 6000' along FS Road 5401-811, on the northern approach to Baldy Mountain, Malheur National Forest.......June 3, 2011.
Paul Slichter