This is a narrow conical conifer with a straight trunk, spire-like crown and branching to the base. Upper branches tend to grow upward, but the lower branches tend to recline. With age, crowns flatten and lower branching begins to disappear. Soft, flattened, pale blue-green needles (to 2 1/2” long) have uniform coloration on both surfaces (specific epithet is in reference to this). Slightly barrel-shaped cones (to 3-6” long) are most often yellowish-green, maturing to brown or purple. As is distinctive with the firs, the cones appear upright on the branches. Trees may not produce cones and seeds for up to the first 40 years. Bark is ash-gray and smooth, but will furrow with age.