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| A dichotomous key is one tool that can be used to identify trees. This type of key is also used for flowers, animals, rocks, fish, and more! A dichotomous key contains a series of choices that lead the user to the correct name of an item. "Dichotomous" means "divided into two parts". Therefore, a dichotomous key will always give two choices in each step. |
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To use this key |
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1. Find a tree or picture of a tree you want to identify and click
on the most appropriate match to the right.
OR 2. Click one of the numbers below to identify one of our mystery trees. If you end with two matching pictures you have identified the tree correctly. OR 3. Choose a tree from the master list below that you want to learn more about. |
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Choose a tree to identify |
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 |
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Do you know what kind of tree this
pinecone is from?
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Master list of trees in this key
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| Common name | Scientific name |
| 1. American Beech | Fagus grandifolia |
| 2. Balsam Fir | Abies balsamea |
| 3. Basswood | Tilia americana |
| 4. Big Toothed Aspen | Populus grandidentata |
| 5. Black Ash | Fraxinus nigra |
| 6. Black Cherry | Prunus serotina |
| 7. Black Spruce | Picea mariana |
| 8. Black Walnut | Juglans nigra |
| 9. Cottonwood | Populus deltoides |
| 10. Eastern Hemlock | Tsuga canadensis |
| 11. Jack Pine | Pinus banksiana |
| 12. Northern White Cedar |
Thuja occindentalis |
| 13. Norway Spruce | Picea abies |
| 14. Red Maple | Acer rubrum |
| 15. Red Oak | Quercus rubra |
| 16. Red Pine | Pinus resinosa |
| 17. Scotch Pine | Pinus sylvestris |
| 18. Shagbark Hickory | Carya ovata |
| 19. Sugar Maple | Acer saccharum |
| 20. Tamarack | Larix laricina |
| 21. Trembling Aspen | Populus tremuloides |
| 22. White Ash | Fraxinus americana |
| 23. White Birch | Betula papyrifera |
| 24. White Oak | Quercus alba |
| 25. White Pine | Pinus strobus |
| 26. White Spruce | Picea mariana |
| 27. Yellow Birch | Betula alleghaniensis |
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Now that you can identify trees with a
dichotomous key you are ready for a |
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