Pseudotsuga menziesii ssp. glauca (Beissn.) A.E.Murray
Rocky Mountain Douglas fir
Rocky Mountain Douglas fir
January 9,
Arnold Arboretum Greenhouse
Douglas fir is capable of cone production in our area. Bracts in this case are reflexed and foliage is glaucous, which makes it ssp. glauca--Rocky Mountain Douglas fir.