Ulmus americana var. floridana

Ulmus americana var. floridana
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Ulmaceae
Genus: Ulmus
Species:
U. americana
Variety:
U. a. var. floridana
Trinomial name
Ulmus americana var. floridana

Ulmus americana var. floridana, the Florida elm, first described as Ulmus floridana by Alvan Wentworth Chapman in the 1860s, is smaller than the type, and occurs naturally in north and central Florida south to Lake Okeechobee.[1]

Description

Vase-shaped, non-pendulous, growing to a maximum height of 22 metres (72 ft), with a slightly greater spread.[1][2][3] The leaves, to 6 in long, are dark green all summer and turn yellow in autumn.[1][4]

Pests and diseases

The tree is no less susceptible to Dutch elm disease, although the disease is less prevalent in Florida.[4]

Cultivation

Occasionally planted as a shade and ornamental tree in Florida.[4][5]

Accessions

  • The IRREC Garden, University of Florida. Accession details not available.[6]

References

  1. ^ a b c Gilman, Edward F.; Watson, Dennis G. (October 1994). "Ulmus americana var. floridana" (PDF). Archived from the original on 9 January 2017. Retrieved 26 February 2018. {{cite journal}}: Cite journal requires |journal= (help)CS1 maint: bot: original URL status unknown (link)
  2. ^ Photograph of two var. floridana on horticopia.info, Edward F. Gilman
  3. ^ Photograph of young var. floridana, Edward Gilman, University of Florida, edis.ifas.ufl.edu
  4. ^ a b c Photograph of var. floridana leaves, John Lampkin; Florida Native Plants Society, fnps.org
  5. ^ Photograph of cultivated var. floridana, University of Florida, edis.ifas.ufl.edu
  6. ^ U. americana var. floridana, irrecenvhort.ifas.ufl.edu