| The purpose of the leaf collection is to learn the trees native to our area, to identify them by the leaf's venation, margin and shape, and by their bark and fruit. I hope that you enjoy the project and learn a lot in the process.
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Some things to keep in mind while collecting your leaves... |
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The old saying "Leaves of three leave them be." (refers to the structure of poison ivy)
The number one thing to remember when searching for your leaves is to be aware of poison ivy, poison sumac, and poison oak. Some people have a reaction to the toxins produced by these plants. Make yourself aware of what they look like and be on the lookout for them. |
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Family: Anacardiaceae -
More images of Toxicodendron radicans Photographed on 4/13/2003 at 4:29:57pm (c) 2003 Steven J. Baskauf - Terms of use Click on the image for a high resolution version (approx 1 MB) Bioimages home |
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Look for the fruit of the tree to aid in the identification.
Maple tree with it's fruit sometimes called 'helicopters.'
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There could be multiple types of the same tree, for example, maple. Look at the different types of maple leaves and fruit and notice the similarities and differences between them.
Silver, Norway, and a sugar maple tree leaves. |
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Trees come in all shapes and sizes. So do their leaves. Make sure to record all information about the tree that the leaf came from. The same tree could have several different shaped leaves.
Catalpa and mulberry leaves |
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Variances in leaves found on the same tree. From bottom to top. |
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Distinctive tree bark, another characteristic to observe and record to make your identification process easier. |
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The Leaf Collection Assignment.
Additional Information:
Information on trees native to Ohio including common and scientific names, pictures and general information about the tree.
If you are out on your adventure searching for leaves and you come across a gigantic tree nominate it for the program Ohio's Big Trees. You may have an Ohio Champ in your backyard! For nomination forms click here.
For a dichotomous key of Ohio trees click here. Make sure that you also use books to key your leaves. I have several available to loan to you or check one of the local libraries.
Ohio State University Lima Campus has a wonderful nature trail and trees that are identified with markers. For a map to help you know what the leaves you are looking for look like visit this link.
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