Oregon State University
Alphabetical List of Tree Common Names Alphabetical List of Tree Scientific Names Identification Key Mystery Tree

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Mystery Tree #1

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  • leaves: Needle-like, occur in bundles of 5; 2-4" long; white lines on all 3 surfaces of each needle.
  • Fruit: Huge, woody cones, 10-20" long (larger than western white pine cones) and straight. Cone scales are thick and straight.
  • Bark: Reddish-brown and furrowed; broken into long plates on older trees (narrow plates on young trees). No small blocky patches, and no rings where whorls of branches once grew.
  • Distribution: Southern to central Oregon Cascades, Siskiyou complex, and California Sierras.


To identify this tree, work your way through the Dichotomous Key.

If you already know the identity of the Mystery Tree, go to the solution page.

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