American elm

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Ulmus americana
AMERICAN ELM

Ulmaceae
E. North America

Location: map coordinates D-33 (on Loop Road, northeast of Price Building), N 39°11'14'' W 75°32'24''

Planting history presently unknown.

  • large deciduous tree
  • etymology: Ulmus = the Latin name; americana = of America
  • leaf double-toothed, leaf base uneven
  • flowers inconspicuous
  • fruit small, roundish, dry, flat, papery-winged
  • formerly a very popular ornamental tree, with unique, graceful vase shape; trees planted in 2 rows formed an archway over a street
  • many killed by Dutch elm disease, a fungus probably originally from Asia, and introduced to the USA in 1928
  • habitat moist woods and floodplains

Native species, State Rank S4 (common, but not very common, in Delaware)

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