Douglas-fir (Red Fir)
Pseudotsuga menziesii
Needles whorled, terminal red bud
Shade intolerant
200' tall, 60" DBH
Bark rough, orange-red fissures 

Grand Fir (White Fir)
Abies grandis
Needles flat, 2" in length
Shade tolerant
300' tall, 50" DBH
Bark plated, white to grey

Subalpine Fir (Alpine Fir)
Abies lasiocarpa
Needles whorled, terminal round bud
High elevations
70' tall, 20" DBH
Bark smooth, grey, pitch pockets

Ponderosa pine (Bull pine)
Pinus ponderosa
3 Needle Pine, 10" in length
Shade intolerant
200' tall, 60" DBH
Bark furrowed, red-orange

Lodgepole pine (Black pine, Jack pine)
Pinus contorta
2 Needle pine, 3" in length
Shade intolerant
60' tall, 20 DBH
Bark black, checkered, rough

Western White pine (Idaho White pine)
Pinus monticola
5 Needle pine, 5" in length
Shade intolerant
225' tall, 50" DBH
Bark white and smooth when young, when mature grey and checkered

Western Larch (Tamarack)
Larix occidentalis
Deciduous. needles spiraled buds
Shade intolerant
150' tall, 60" DBH
Bark plated/furrowed  orange/brown

Western Red Cedar
Thuja plicata
Scaled short needles
Prefers wetter sites
200' tall, 80" DBH
Bark roped, reddish

Engelmann Spruce
Picea engelmanni
Needles whorled, terminal pointed
150' tall, 50" DBH
Bark checkered, purple/brown

Western Hemlock
Tsuga heterophylla
Needles whorled irregular in different lengths
Prefers wetter sites
200' tall, 50" DBH
Bark Brown smooth/flaky in regeneration
Furrowed and greyed when mature

Mountain Hemlock
Tsuga mertensiana
Needles irregular whorled in equal length
High elevations
80' tall, 20" DBH
Bark brownish grey and furrowed

Pacific Yew
Taxus brevifolia
Needles flat, 1-2" in length
40' tall, 15" DBH
Bark brown and paper-like