Fir (Abies) is a genus of 48–55 species of evergreen coniferous tree in the family Pinaceae. It is found through much of North and Central America, Europe, Asia, and North Africa, occurring in mountains over most of the range. Firs are most closely related to the genus Cedrus (cedar); Douglas-firs are not true firs, being of the genus Pseudotsuga.
 TREE SEEDLINGS. L-->R : Subalpine Fir, Pacific Silver Fir, Grand Fir, Western Red Cedar, Alaska Yellow Cypress, Western Hemlock, Quaking Aspen (aka Trembling Aspen), Paper Birch, Sitka Spruce, White/Engelmann Spruce, Western Larch, Douglas-Fir, Lodgepole Pine, Western White Pine, Ponderosa Pine. Click link for larger photo.