Ulmus americana - Wikipedia
Ulmus americana, generally known as the American elm or, less commonly, as the white elm or water elm, [a] is a species of elm native to eastern North America. The trees can live for several hundred years. It is a very hardy species that can withstand low winter temperatures, but it is affected by Dutch elm disease.
American Elm Tree: Leaves, Bark (Pictures) - Identification and Care
2022年2月18日 · The American elm tree is a popular deciduous broadleaf landscape tree with an attractive shape and fall colors. American elms are identified by their upright-spreading habit that forms an appealing urn-shaped, broad crown.
18 Facts About American elm | FactSnippet
Ulmus americana, generally known as the American elm or, less commonly, as the white elm or water elm, is a species of elm native to eastern North America, naturally occurring from Nova Scotia west to Alberta and Montana, and south to Florida and central Texas.
American elm - The Morton Arboretum
American elm is native to the eastern half of the United States. Alternate, oval, pointed leaves have doubly toothed margins. The leaf is shorter on one side of the center vein than on the other. Leaf color is dark green in summer, changing to yellow in …
American Elm (Ulmus americana): History, Bark ... - AMERICAN …
2024年5月29日 · The American Elm (Ulmus americana), also known as the white elm, water elm, soft elm, or Florida elm, is a type of elm tree native to eastern North America. It is characterize by a vase-shaped habit, forming a broad, flat-topped or vase-like crown.
Ulmus americana (American Elm, Common Elm, Gray Elm, Soft Elm…
American elm is a rapidly growing perennial, woody, deciduous tree in the elm family (Ulmaceae). It grows 60 to 80 feet tall with a trunk diameter of 2 to 5 feet. Older trees sometimes develop buttresses that expand their base. The tree is native to eastern North America.
American Elm - US Forest Service Research and Development
American elm (Ulmus americana), also known as white elm, water elm, soft elm, or Florida elm, is most notable for its susceptibility to the wilt fungus, Ceratocystis ulmi. Commonly called Dutch elm disease, this wilt has had a tragic impact on American elms.
American Elm | Yale Nature Walk
The American Elm is a species native to the eastern part of North America. It is a large deciduous, hermaphroditic tree that produces small perfect flowers in early spring. The flowers are wind pollinated, however, since they are protogynous (the female organs maturing before the male organs) this greatly reduces the chances of self fertilization.
American Elm: 100 Most Common North American Trees
2019年5月17日 · American elms have an extensive but shallow root system. The six-inch-long, deciduous leaves are dark green throughout the year, fading to yellow before dropping in fall. In early spring, before the new leaves unfold, the rather inconspicuous, small, green flowers appear on pendulous stalks.
ENH-806/ST649: Ulmus americana: American Elm - EDIS
Once a very popular and long-lived (300+ years) shade and street tree, American elm suffered a dramatic decline with the introduction of Dutch elm disease, a fungus spread by a bark beetle. The wood of American elm is very hard and was a valuable timber tree …