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Forestry Envirothon B. A. Stump 2010
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Leaf Shapes
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Scale Like
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Broad & Flat
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Needles
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Leaf Arrangement
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Alternate
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Opposite
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Whorled
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Leaf Structure
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Simple Leaf Petiole (Leaf Stalk) Bud
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A Compound Leaf Leaflet Petiole (Leaf Stalk) Bud Pinnately Compound
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A Compound Leaf Palmately Compound Leaflet Petiole (Leaf Stalk) Bud
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(Alternate) http://www.dkimages.com/discover/previews/862/65009031.JPG
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American Chestnut http://www.dkimages.com/discover/previews/862/65009031.JPG
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(Alternate, rough on upper surface & soft-hairy below)
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American Elm http://sfrc.ufl.edu/4h/AmericanElm/AmericanElmLeafWeb.jpg
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(Alternate, short in-curved teeth)
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Black Cherry http://www.discoverscience.rutgers.edu/extras/trees/images/BlackCherryLarge.jpg
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Black Cherry http://biology.missouristate.edu/Herbarium/TreesonCampus/images/Prunusserotina.jpg
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(Alternate, finely toothed)
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http://www.cirrusimage.com/Trees/black_willow_2.jpg Black Willow
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(Opposite, compound)
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Box Elder http://faculty.etsu.edu/mcdowelt/images%20used%202001%5Cbox%20elder.JPG
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(Alternate)
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Chestnut Oak http://www.mcnees.org/mainpages/misc/trees/img_trees_hobson_chestnut_oak_leaves_remc.jpg
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(Flat needles w/ small stalks) http://www.cas.vanderbilt.edu/bioimages/biohires/t/htsca--lf11394.JPG
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Eastern Hemlock http://www.cas.vanderbilt.edu/bioimages/biohires/t/htsca--lf11394.JPG
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(5 needles per cluster)
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Eastern White Pine http://www.naturephoto-cz.com/photos/others/eastern-white-pine-25288.jpg
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(Alternate, double serrated)
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http://www.blisstree.com/treehuggingfamily/files/2008/04/pcd1323_img0072.JPG http://www.cirrusimage.com/Trees/paper_birch_4.jpg Paper Birch
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http://www.msstate.edu/dept/geosciences/CT/TIG/WEBSITES/LOC AL/Summer2003/Dawson_Dara/pawpaw.jpg http://www.veggiegardeningtips.com/wp-content/uploads/2008/09/paw-paw-fruits.jpg Paw
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(Alternate, compound, finely toothed leaflets)
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Shagbark Hickory http://www.laddarboretum.org/images/buttons/leaf%20detail_shagbark%20hickory.jpg http://sheisfinallywriting.files.wordpress.com/2008/03/caov0280s.jpg http://www.hiltonpond.org/images/HickoryShagbarkNuts01.jpg
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(Opposite, has the largest fruit of native species of this tree in the state)
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Silver Maple http://campus.murraystate.edu/academic/faculty/howard.whiteman/field/plants/plantgallery/SilverMapleLeaves.jpg
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(Alternate, rough leaves)
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Slippery Elm http://www.ibiblio.org/openkey/intkey/images/Ulmus_rubra_leaves01.jpg
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(Alternate)
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http://z.about.com/d/forestry/1/0/5/5/tulipleaf.jpg Tulip Tree “T-shirt tree”
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(Opposite, compound)
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White Ash http://www.dkimages.com/discover/previews/1052/55009331.JPG
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(Alternate)
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White Oak http://www.clemson.edu/hort/scmg/images/Whiteoak.JPG
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Chestnut Oak White Oak
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American Elm Slippery Elm
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American Elm Paper Birch
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