True Firs of the Cascade Mountains of Oregon and Washington

The Genus Abies

Amabilis Fir, Cascade Fir, Lovely Fir, Pacific Silver Fir, Silver Fir: Abies amabilis -

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

Grand Fir, Lowland White FirLowland White Fir, Stinking Fir:: Abies grandis (Synonyms: Abies grandis var. grandis, Abies grandis var. idahoensis, Pinus grandis)-

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)

Shasta Red Fir, California Red Fir: Abies magnifica x Abies procera (Synonyms: Abies procera, Abies x shastensis, Abies magnifica, Abies magnifica var. magnifica, Abies magnifica var. shastensis) -

Noble Fir, Red Fir, White Fir: Abies procera (Synonym: Abies nobilis) -