|Douglas fir cone|
|Cone near the top of a noble fir|
Unlike the Douglas fir, you will rarely see a cone under a noble fir. In fact, if you see any cones under a noble fir, they are likely cones from a nearby Douglas fir. If you look carefully at the top of a noble fir, you may see cones up there. But the cones don’t stay there forever. So what happens to all the noble fir cones?
|Noble fir scale and long bract|
|Grand fir scale with broad bract|
When you see these cone scales on the ground, you can use them to identify the species of fir. Recently hiking the University Falls Loop Hike in the Coast Range, I noticed some scales had fallen onto the trail. Attached to the scales were long bracts that extended beyond the edge of the scales. These long bracts are unique to noble fir among the native firs of Oregon. All of the other native firs have much shorter bracts, which never extend beyond the edge of the scales.
|Pacific silver fir scale with tapered bract|
Later on the University Falls Loop, there were some scales along the trail with bracts that were much shorter than the scales. These fell from a grand fir. Note the shape of the tip of the bract. Each species has its unique shape. Grand fir has a broad end with a narrow tip. If you hike above 5000 feet in the Cascades, you're likely to see Pacific silver fir and subalpine fir. Pacific silver fir bracts are tapered at the end and come to a point. Subalpine fir bracts are rounded with a small point at the end.
|Subalpine fir scale with rounded bract|
So, if you are out hiking in the fall, just look down. You may see the cone scales all over the forest floor. Then you will know what happened to the fir cones. Not only that, but you will be able to identify each of the firs by the distinctive bracts of each species.
|Douglas fir scales and cone cobs|