Ulmus alata

  • BOTANICAL NAME: Ulmus alata
  • COMMON NAME: Winged Elm
  • FAMILY: Ulmaceae
  • NATIVITY:   South of Virginia and as west as Illinois
  • GROWTH HABIT:  40-60’ (90’)
  • HARDINESS:  USDA Zone 6 to 9
  • OPTIMUM GROWING CONDITIONS:  Full sun in moist soils, rich woodlands
  • SUCCESSIONAL STATUS:  Successional
  • FACULTATIVE STATUS:  Facultative Upland
  • LANDSCAPE VALUE:  Unique winged stem and resemblance to Ulmus americana makes this specimen popular.  Also, has great yellow fall color if not infected with powdery mildew disease.
  • FOLIAGE:   Alternate, simple, oblong-lanceolate; doubly serrated, auxillary tufts below.  Yellow fall color
  • BUDS:  Resemble a small U. americana; reddish brown and imbricately scaled
  • BARK: Gray and resembles U. parviflora but stems develop two corky wings that are most priminent in new growth.  ID factor is the wings - but realize they are not always present.
  • FRUIT:  Flowers are greenish red in early spring, fruit is not showy
  • PESTS:  Powdery mildew, susceptible to deer prune
University of Delaware

University of Delaware Botanic GardensNewark, DE 19716Phone: 302 831-0153