Trees of Wisconsin
Key to Gymnosperms of Northeastern Wisconsin
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15a. Native species, abundant in northern forests and not popular as a yard or street tree (although it is a favorite for Christmas trees); Cones point upward from the branches and the papery scales are usually too short to show beyond the woody cone scales; cone scales fall off at maturity. |
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Abies balsamea (Balsam Fir) |
| 15b. Horticultural species of yards, but never growing "wild"; cones point downward from the branches and the papery, forked bracts are conspicuously longer than the woody cone scales; cone scales remain on the cones at maturity. | 
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Pseudotsuga menziesii (Douglas Fir) |