Observation Tools

American elm Photo courtesy of Steve Baskauf, Vanderbilt University, bioimages.vanderbilt.edu.

American elm (Ulmus americana)


Plant Family: Elm (Ulmaceae)
Project BudBurst Plant Group: Deciduous Trees and Shrubs

Identification Hints: The American elm is a tree whichcan grow up to 100 feet tall. It is found over much of the easternUnited States, as far north as Maine and as far south as Texas. Its range extends west into Montana andWyoming. The flowers of the American elm emerge before the leaves, so keep a close eye on them inthe spring. The flowers are small and purplish-brown in color.

Did you Know? American elm was first described by Carolus Linneaus in 1753. The flowers are small, purplish-brown and very inconspicous. The flowers are wind-pollinated and do not have any petals. The fruits are flat and round with a seed encapsulated in a papery, wing-like outer covering. This fruit type is considered a samara by botanists. The fruits also rely on wind for dispersal.


Live Map for American elm

Other years available for viewing:

Below you can view all observations that have been reported in for American elm (If the map below is empty then there have not been any observations reported.)

Use the navigation buttons on the left to zoom in/out and pan around. Click on each place marker to get detail information about that observation.

Leaf/Needles/Stalk = Leaf/Needles/Stalk Flower = Flower Pollen = Pollen Fruiting = Fruiting Color = Color

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The table below displays all the data that has been submitted to Project BudBurst. By default, the data is sorted by the date on which the phenophase occurred. Clicking the up and down arrows next to each column name allows you to sort on any value. If there have been more than 10 observations submitted, you can choose how many to display at a time using the "Show __ entries" control. You can also page through the data using the previous and next buttons at the bottom right of the table.

The Search box allows you to search all of the data. Searching by date, species, phenophase, etc. is easy—just start typing and the table will immediately change to contain only observations that contain your search phrase. Do you want to see only 2012 observations? Just type "2012" in the search box. Only want to see maples? Enter "Acer." You can combine searches, too! Searching for "acer 2012" will narrow your results to only the maples that were observed in 2012 (assuming that any observations exist, of course).

Once you have your results in the order desired, you can use any of the buttons above the search box to copy the results to the clipboard; save them as a text, or spreadsheet; or even print them from your browser!

Observational data for American elm:

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Date Contributor Common Name Species Phenophase Latitude Longitude Obs#
Wed May 25 00:00:00 GMT 2011 sbank03 American elm Ulmus americana Full Fruiting 33.794100000000000 -84.315000000000000 12672
Sat Sep 17 00:00:00 GMT 2011 palaback American elm Ulmus americana Leaves Changing Color (Early) 40.308300000000000 -105.081000000000000 13289
Sun Sep 18 00:00:00 GMT 2011 palaback American elm Ulmus americana Leaves Changing Color (Early) 40.307500000000000 -105.084000000000000 13257
Wed Oct 05 00:00:00 GMT 2011 cralston American elm Ulmus americana Leaves Changing Color (Early) 47.923800000000000 -97.053900000000000 13512
Mon Oct 17 00:00:00 GMT 2011 palaback American elm Ulmus americana Leaves Changing Color (Middle) 40.305600000000000 -105.083000000000000 13689
Sun Apr 01 00:00:00 GMT 2012 palaback American elm Ulmus americana Flowers (Middle) 40.308300000000000 -105.081000000000000 14634
Thu Apr 19 00:00:00 GMT 2012 Erin_VS American elm Ulmus americana Leaves Unfolding (Early) 41.815900000000000 -88.056900000000000 15108
Sun Apr 29 00:00:00 GMT 2012 dipp293 American elm Ulmus americana Leaves Unfolding (Middle) 42.571700000000000 -70.777200000000000 15353
Wed Sep 26 00:00:00 GMT 2012 ricktig American elm Ulmus americana Fruit (Late) 39.500000000000000 -105.500000000000000 16753
Sat Sep 29 00:00:00 GMT 2012 wendy American elm Ulmus americana 50% Color 42.043100000000000 -87.687700000000000 16761
Mon Oct 15 00:00:00 GMT 2012 wendy American elm Ulmus americana 50% Leaf Fall 42.043100000000000 -87.687700000000000 17051
Sat Mar 07 00:00:00 GMT 2009 gmwimp American elm Ulmus americana Bud Burst 38.908400000000000 -77.072500000000000 17990
Fri Apr 17 00:00:00 GMT 2009 gmwimp American elm Ulmus americana First Leaf 38.908400000000000 -77.072500000000000 17991
Mon Apr 27 00:00:00 GMT 2009 gmwimp American elm Ulmus americana All Leaves Unfolded 38.908400000000000 -77.072500000000000 17992
Sat Mar 07 00:00:00 GMT 2009 gmwimp American elm Ulmus americana First Flower 38.908400000000000 -77.072500000000000 17993
Fri Mar 13 00:00:00 GMT 2009 gmwimp American elm Ulmus americana Full Flower 38.908400000000000 -77.072500000000000 17994
Sat Mar 09 00:00:00 GMT 2013 csunkissed1 American elm Ulmus americana Bud Burst 40.071100000000000 -75.302100000000000 18174
Tue Mar 19 00:00:00 GMT 2013 kgarbach_Loyola_University_Chicago_reporter26 American elm Ulmus americana Leaves Unfolding (Early) 42.000700000000000 -87.656600000000000 18178
Tue Mar 12 00:00:00 GMT 2013 kgarbach_Loyola_University_Chicago_reporter26 American elm Ulmus americana Leaves Unfolding (Early) 41.178700000000000 -88.082900000000000 18177
Thu Mar 21 00:00:00 GMT 2013 DCub_CP_reporter13 American elm Ulmus americana Leaves Unfolding (Early) 39.948000000000000 -75.209600000000000 18222
Thu Mar 21 00:00:00 GMT 2013 DCub_CP_reporter13 American elm Ulmus americana Leaves Unfolding (Early) 39.948000000000000 -75.209600000000000 18223
Sun Feb 24 00:00:00 GMT 2013 bgagsIU American elm Ulmus americana Bud Burst 39.176600000000000 -86.530400000000000 18592
Tue Apr 16 00:00:00 GMT 2013 ebruce15 American elm Ulmus americana Bud Burst 33.995800000000000 -84.245200000000000 18976
Sun Apr 14 00:00:00 GMT 2013 wendy American elm Ulmus americana Bud Burst 42.043100000000000 -87.687700000000000 18966
Fri Apr 19 00:00:00 GMT 2013 ecc912 American elm Ulmus americana Bud Burst 41.748500000000000 -72.691300000000000 19448
Mon Apr 22 00:00:00 GMT 2013 ecc912 American elm Ulmus americana First Leaf 41.748500000000000 -72.691300000000000 19449
Sun Apr 28 00:00:00 GMT 2013 ecc912 American elm Ulmus americana All Leaves Unfolded 41.748500000000000 -72.691300000000000 19450
Thu Mar 28 00:00:00 GMT 2013 cwooster American elm Ulmus americana Bud Burst 41.747100000000000 -72.690400000000000 19827
Sun Apr 28 00:00:00 GMT 2013 cwooster American elm Ulmus americana First Leaf 41.747100000000000 -72.690400000000000 19828
Sun May 05 00:00:00 GMT 2013 cwooster American elm Ulmus americana All Leaves Unfolded 41.747100000000000 -72.690400000000000 19829
Thu Sep 12 00:00:00 GMT 2013 brydel_New_Branches_reporter32 American elm Ulmus americana Full Fruiting 42.895800000000000 -85.635200000000000 22023
Thu Sep 12 00:00:00 GMT 2013 brydel_New_Branches_reporter32 American elm Ulmus americana Full Fruiting 42.895800000000000 -85.635200000000000 22024
Thu Sep 12 00:00:00 GMT 2013 brydel_New_Branches_reporter31 American elm Ulmus americana Full Fruiting 42.895800000000000 -85.635200000000000 22022
Tue Sep 24 00:00:00 GMT 2013 lanzitk American elm Ulmus americana Leaves Changing Color (Early) 42.818800000000000 -73.927300000000000 22118
Thu Oct 03 00:00:00 GMT 2013 mlui306 American elm Ulmus americana 50% Color 39.200400000000000 -77.288300000000000 22491
Tue Oct 15 00:00:00 GMT 2013 fuo213 American elm Ulmus americana Leaves Dropping (Late) 40.580900000000000 -105.075000000000000 22593
Tue Oct 29 00:00:00 GMT 2013 robinv1_Washington_College_reporter13 American elm Ulmus americana 50% Color 39.219200000000000 -76.069600000000000 22817
Wed Nov 06 00:00:00 GMT 2013 robinv1_Washington_College_reporter13 American elm Ulmus americana 50% Leaf Fall 39.219200000000000 -76.069600000000000 23012
Fri Nov 01 00:00:00 GMT 2013 sisaacso American elm Ulmus americana 50% Color 39.055600000000000 -86.161100000000000 23200
Mon Nov 04 00:00:00 GMT 2013 sisaacso American elm Ulmus americana 50% Leaf Fall 39.055600000000000 -86.161100000000000 23201
Fri Nov 08 00:00:00 GMT 2013 lillianferch American elm Ulmus americana 50% Color 39.096000000000000 -86.001000000000000 23537
Thu Nov 14 00:00:00 GMT 2013 lillianferch American elm Ulmus americana 50% Leaf Fall 39.096000000000000 -86.001000000000000 23538
Fri Oct 18 00:00:00 GMT 2013 robinv1_Washington_College_reporter5 American elm Ulmus americana 50% Color 39.219200000000000 -76.069600000000000 24237
Mon Dec 02 00:00:00 GMT 2013 robinv1_Washington_College_reporter5 American elm Ulmus americana 50% Leaf Fall 39.219200000000000 -76.069600000000000 24238
Wed Oct 30 00:00:00 GMT 2013 robinv1_Washington_College_reporter8 American elm Ulmus americana 50% Color 39.219200000000000 -76.069600000000000 24261
Mon Sep 16 00:00:00 GMT 2013 robinv1_Washington_College_reporter28 American elm Ulmus americana All Leaves Unfolded 39.219200000000000 -76.069600000000000 24316
Sun Oct 27 00:00:00 GMT 2013 robinv1_Washington_College_reporter28 American elm Ulmus americana 50% Color 39.219200000000000 -76.069600000000000 24317
Tue Oct 29 00:00:00 GMT 2013 robinv1_Washington_College_reporter28 American elm Ulmus americana 50% Leaf Fall 39.219200000000000 -76.069600000000000 24318
Mon Sep 16 00:00:00 GMT 2013 robinv1_Washington_College_reporter28 American elm Ulmus americana All Leaves Unfolded 39.219200000000000 -76.069600000000000 24313
Sun Oct 27 00:00:00 GMT 2013 robinv1_Washington_College_reporter28 American elm Ulmus americana 50% Color 39.219200000000000 -76.069600000000000 24314
Tue Oct 29 00:00:00 GMT 2013 robinv1_Washington_College_reporter28 American elm Ulmus americana 50% Leaf Fall 39.219200000000000 -76.069600000000000 24315

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