Tree Identification Guide for Oregonians
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This document provides guidance on identifying trees in Oregon by their distinguishing characteristics. It explains that trees can be categorized as either conifers or broadleaves. Key details to observe include the spacing, shape, size of leaves or needles, whether they are evergreen or deciduous, and whether cones or flowers/fruit are present. The document encourages using a dichotomous key and details what features to examine, such as needle length and shape for conifers or leaf lobes, edges, and underside colors for broadleaves, to accurately identify tree types.
Tree Identification Guide for Oregonians
- 2. Oregon's state tree is the Douglas Fir It is characterized by blunt green pine needles and 1-4" pine cones with pitchfork-shaped brackets
- 4. SO HOW DO EXPERTS IDENTIFY TREES? Conifers vs. broadleaves Spacing of leaves Shape and size of leaves
- 5. Conifers are evergreens They often bear cones and have leaves that look like needles or scales
- 6. Broadleaves are deciduous They have flat, thin leaves and shed them in winter Broadleaves often grow flowers or fruit too
- 7. Are needles even spaced along branch? Or clumped together? How many needles in a clump? Spacing of Leaves: Coniferous
- 8. Spacing of Leaves: Broadleaves Are lots of leaves fanning out from single twig? Single leaves sticking off of twigs or small branches? Do they alternate along either side of the branch or are they exactly opposite?
- 9. Shape of leaves: conifer How long are the needles? Do they have pegs or buds on them? Are they different colors?
- 10. Shape of leaves: broadleaves Do they have lobes? Are they oval? What are the leaves shaped like? Are their edges smooth or jagged? Are the undersides a different color? Is there any fruit?
- 11. Using a Dichotomus Key Click here to start using the Dichotomous key from Oregon State Univesity What you'll need: Internet A ruler A tree
- 12. Want to know more about tree identification? Visit the blog at http://www.nwtree.com/blog/ Or to speak to a certified Arborist and Master Gardener go to www.nwtree.com