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American Elm
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Transcript of American Elm
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AMERICAN ELMBen Ferguson
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American ElmAmerican Elm, Ulmus americana L., has
been called White Elm, American White Elm, Water Elm, Soft Elm, and Florida Elm. It is also an extremely hardy tree.
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ClassificationKingdom – Plantae (Plants)Subkingdom – Tracheobionta (Vascular plants)Superdivision – Spermatophtyta (Seed plants)Division – Magnoliophyta (Flowering plants)Class – Magnoliopsida (Dicotyledons)Subclass – Hamamelididae Order – UrticalesFamily – Ulmaceae (Elm family)Genus – Ulmus L. (Elm)Species – Ulmus americana L. (American Elm)
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Shape, Form, TypeAmerican Elms can grow up to 38 m in
height. It has a large vase-like growth which makes it useful as a shade tree.
Figure 1
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BarkThe bark of a young American elm is
sometimes spongy. The bark has a grayish color and it has diamond shaped fissures in the bark. Figure
2
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Twig The twigs are tender and are somewhat
zigzagged. They are reddish-brown in color.
Figure 3
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LeafThe leaves of an American elm are simple
and they alternate. They are ovate to oblong, 3 to 5 in in length and 1 to 3 in wide. They are also sharply double serrate. Figure 4
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BudThe buds are ¼ of an in long. They are
ovate and are placed a little to one side of the twig. They are reddish-brown in color with scales that are darker.
Figure 5
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FlowerThe flowers are small and grow in drooping
clusters of 3 to 5. They appear in the early spring.
Figure 6
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FruitThe fruit are flat, rounded, and wafer-like.
Hair appears along the margin of the fruit and they ripen in the spring.
Figure 7
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Habitat and RangeAmerican Elm can be found in eastern North
America. It reaches from Nova Scotia, Ontario, southern Manitoba, and southeastern Saskatchewan; to Montana, Wyoming, Nebraska, Kansas, Oklahoma, Texas, Florida, and up across the entire east coast.
Figure 8
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UsesThe American Elm has been used as
firewood, as a shade tree, and as a street tree. It is also used in making furniture and in construction.
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References Images
http://www.plantcare.com/encyclopedia/american-elm-2107.aspx Figure 1 Retrieved 6/23/10
http://www.cas.vanderbilt.edu/bioimages/image/u/ulam--br12246.htm Figure 2 Retrieved 6/23/10
http://www.earlham.edu/~biol/brents/field_botany/wildman1/american_elm_twig2.jpg Figure 5 Retrieved 6/23/10
http://www.cas.vanderbilt.edu/bioimages/species/ulam.htm Figure 3 Retrieved 6/23/10
http://www.cas.vanderbilt.edu/bioimages/species/ulam.htm Figure 4 Retrieved 6/23/10
http://www.cas.vanderbilt.edu/bioimages/species/ulam.htm#Flower Figure 6 Retrieved 6/23/10
http://www.cas.vanderbilt.edu/bioimages/image/u/ulam--frmature19631.htm Figure 7 Retrieved 6/23/10
http://na.fs.fed.us/pubs/silvics_manual/volume_2/ulmus/americana.htm Figure 8 Retrieved 6/23/10
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References Information http://www.plantcare.com/encyclopedia/a
merican-elm-2107.aspx Retrieved 6/23/10
http://na.fs.fed.us/pubs/silvics_manual/volume_2/ulmus/americana.htm Retrieved 6/23/10
http://plants.usda.gov/java/profile?symbol=ULAM Retrieved 6/23/10
http://www.cnr.vt.edu/dendro/dendrology/syllabus/factsheet.cfm?ID=41 Retrieved 6/24/10