Medium to tall fir of central to western United States having a narrow erect crown and soft wood

A large fir (Abies concolor) of western North America with pale usually bluish-green foliage, a narrow erect crown, and soft wood that is used for lumber.
Medium to tall fir of central to western United States having a narrow erect crown and soft wood; SYN. Colorado fir, California white fir, Abies concolor, Abies lowiana.