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Image of American elm
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American Elm

Ulmus americana L.

2005 California Academy of Sciences   cc-by-nc-sa-3.0

Ulmus americana (American Elm) is a species of tree in the family Ulmaceae. They have a self-supporting growth form. They are listed as endangered by IUCN. They are native to Eastern North America, North America, United States, The Contiguous United States, and Canada. They have simple, broad leaves, green flowers, and samara. Flowers are visited by American Hover Fly, Gnadochaeta clistoides, Zodion obliquefasciatum, and Holcopasites heliopsis. Individuals can grow to 37 m.

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  • URI: http://purl.obolibrary.org/obo/PO_0030099
  • Definition: a fruit which develops from a carpel and at maturity comprises a dry exocarp, dry mesocarp, and dry endocarp that are elongated into a wing-like structure.
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EOL has data for 82 attributes, including:

Known occurrences, collected specimens and observations of American elm. View this species on GBIF