Use the female cones

Conifer Cone Dichotomous Key

    1. Cone length is greater than 1" go to 4
    2. Cone length less than 1" go to 2
    1. Cone has more than 12 scales go to 3
    2. Cone sits upright on branch - Western red cedar
    1. Cones delicate with thin scales - Western hemlock
    1. Cone length less than 4" go to 5
    2. Cone greater than 5" and banana shaped - Western white pine
    1. Cones without bracts go to 6
    2. Cones with three-pronged bracts between scales - Douglas-fir
    1. Cone can sit on its base upright on table go to 7
    2. Cone solid, dense, sits upright on tree - Atlas cedar
    1. Cone length less than 2" goto 8
    2. Cone scales opening from the end - Ponderosa pine
    1. Scales thick, hard, dense cone - Sequoia
    2. Cone scales opening from the end - Lodgepole pine