Interior Douglas Fir, Rocky Mountain Douglas Fir, Rocky Mountain Douglas-fir: Pseudotsuga menziesii var. glauca (Synonyms: Pseudotsuga flahaultii, Pseudotsuga menziesii var. flahaultii, Pseudotsuga taxifolia var. glauca)
Coast Douglas Fir, Douglas Fir: Pseudotsuga menziesii var. menziesii (Synonyms: Abies mucronata, Abies taxifolia, Pseudotsuga douglasii, Pseudotsuga mucronata, Pseudotsuga taxifolia)