Blooming in the spring, nearly indistinguishable from U. serotina without knowing blooming time: Ulmus americana (American elm) 3. Flowers give way to single-seeded wafer-like samaras (each tiny seed is surrounded by a flattened oval-rounded papery wing). It is native to eastern and central North America. The tree has had major problems with Dutch elm disease and is now out of favor when considered for urban tree planting.The vase-shaped form and gradually arching limbs make it a favorite to plant on city streets. United States, DC, Washington, USDA ARS National Arboretum. Ulmus americana Elm family (Ulmaceae) Description: At maturity, this tree is 60-100' tall, forming a trunk 2-4' across and an arching crown with drooping branchlets. American Elm is a deciduous tree that may grow 80 to 100 feet tall. Form. Ulmus rubra: leaf blade with usually 2 or more lateral veins forking well before reaching margin and wing of fruit lacking marginal cilia and hairy over the body of seed (vs. U. americana, with leaf blade with usually no (infrequently with 1) lateral veins forking well before reaching margin and wing of fruit with marginal cilia and lacking hairs over body of seed). Blooming in the fall, restricted range in south central U.S.: Ulmus serotina (September elm) Leaves like sandpaper above, cross-section of bark more uniformly brown, twigs scabrous: Ulmus rubra (slippery elm) 3. The Tree is a deciduous tree, it will be up to 45 m (148 ft) high. The website also provides access to a database and images of herbarium specimens found at the University of South Florida and other herbaria. Ulmus americana L. Preferred Common Name. Ulmus americanais a tree with alternate, simple leaves. Ulmus americana in Kew Science Plants of the World online. In nature, it can be found in swamps, bottomland forests, moist slopes, and in areas with especially nutrient-rich soils. The Plants Database includes the following 14 species of Ulmus . This large, fast-growing tree is tolerant of many adverse site conditions. Performance & security by Cloudflare, Please complete the security check to access. It is native to eastern and central North America. floridana: Florida Elm 1. The trunk is long and undivided in forested areas, but it is shorter in open areas before dividing into major branches. The leaves are oblong and the flowers are brownish-purple. Accessed: 2020 May 16. Wetwood is a bacterial disease that results in wilting and dieback. June 13, 2002. Grow in average, medium moisture, well-drained soils in full sun. Sadly, the American elm (Ulmus americana) can no longer be recommended because it is vulnerable to a devastating pathogen called Dutch elm disease. American elm; Other Scientific Names. Rough-textured, ovate-elliptic, dark green leaves (to 6” long) have toothed margins and asymetrical bases. In Missouri, it typically occurs in low moist ground and along streams throughout the state (Steyermark). Seeds mature in April-May as the leaves reach full size. long (7-15 cm), turns butter-yellow to rich yellow in the fall. Florida elms have a vase-shaped growth with foliage made up of ovate leaves that have typically serrated margins. The Atlas of Florida Plants provides a source of information for the distribution of plants within the state and taxonomic information. Peterson. 0. Leaves can be variable Prairie Expedition American Elm, a cultivar of our native Ulmus americana, is a clonal propagation of a lone survivor found among many other American elms that died from Dutch Elm Disease.Like other American elms, its mature height is around 60' with a spread of 35-40', and it has the classic cathedral/umbrella form that makes them so desirable. Click on images of American Elm to enlarge. Reply. The Garden wouldn't be the Garden without our Members, Donors and Volunteers. Generally tolerant of urban conditions. Even though Dutch elm disease has killed most of the large elm in Iowa, American elm is still a component of woodlands in the state. Noteworthy Characteristics. • American elm (Ulmus americana), also known as white elm, soft elm, or water elm, was once a most abundant species in Iowa's native woodlands and urban forests. Boulder Tree Care. American elm Ulmaceae Ulmus americana L. symbol: ULAM Leaf: Alternate, simple, ovate to oblong, 3 to 5 inches long, 1 to 3 inches wide, margin coarsely and sharply doubly serrate, base conspicuously inequilateral, upper surface green and glabrous or slightly scabrous, paler and downy beneath. Click below on a thumbnail map or name for species profiles. Ulmus americana var. These include the following: 'Jefferson', 'New Harmony', Prairie Expedition®, 'Princeton' , and 'Valley Forge'. This native North American tree grows quickly when young, forming a broad or upright, vase-shaped silhouette, 60 to 80 feet high and wide. The Princeton elm exhibits good resistance to Dutch elm disease (DED) and demonstrates resistance to elm beetles as well. Tolerant of light shade. Insignificant small green flowers appear in spring before the foliage emerges. Edward F. Gilman and Dennis G. Watson 2. Ulmus alata 40-60 ft. Ulmus americana 80-100 ft. Ulmus davidiana var. Published on the internet. Your IP: 95.217.113.228 2020. General Natural Range: Extends from eastern Saskatchewan to the Canadian Maritimes south to Texas and central Florida. You may need to download version 2.0 now from the Chrome Web Store. japonica 'Emerald Sunshine' 20-35 ft. and insect pests resistant Ulmus glabra 70-100 ft. Ulmus glabra 'Horizontalis' 15-20 ft. and weeping; Ulmus 'Homestead' 40-60 ft. and Dutch elm disease resistant Ulmus minor 70-90 ft. Ulmus parvifolia 40-60 ft. Ulmus pumila Uses: Limited use due to the lack of large trees due to Dutch elm disease. water elm, white elm. is similar to American elm. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. The leaves are alternate with a doubly toothed margin and unequal base. Not currently recommended for most landscape plantings due to Dutch elm disease. International Plant Names Index. Wisconsin River, southwestern Wisconsin, USA. Leaves typically turn an undistinguished yellow in fall.Genus name comes from the Latin name.Specific epithet means of North or South America. May be used as a lawn, shade or street tree. Prefers rich, moist loams. Ulmus americana, commonly called American elm, is a medium to large deciduous tree, typically growing to 60-80’ (less frequently to 130’) tall with a vase-shaped, broad-rounded crown.It is native to eastern and central North America. There is no difference in the mucilage of the twigs or leaves, as far as I can tell. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. Other Common/Trade Names: None Scientific Name: Ulmus americana Best Characteristics for Identification: Ulmiform arrangement. Raymond Guries: Identity Top of page Preferred Scientific Name. The bark is ashy gray with flat-topped ridges separated by diamond-shaped fissures. Dead elm trunk of American Elm (Ulmus americana) 85 cm in diameter. The tree likes sun at the location and the soil should be alluvial soils. A.K.A. The foliage of leathery, dark green leaves, 3-6 in. Native Introduced Native and Introduced. In Missouri, it typically occurs in low moist ground and along streams throughout the state (Steyermark). Phloem necrosis is a disease caused by a phytoplasma that attacks the food-conducting tissue of the tree, usually resulting in a loosening of the bark, wilting, defoliation and death. Insect visitors include borers, leaf miner, beetles, mealy bugs, caterpillars and scale.Development of varieties that are resistant to Dutch elm disease is ongoing. American elm bark identification. Cloudflare Ray ID: 60541654be0a16ea native to eastern North America; deciduous; reaching 55-85′ (before dutch elm disease commonly reached well over 100′ in height) In Missouri, it typically occurs in low moist ground and along streams throughout the state (Steyermark). Vernacular names Botanical name: Ulmus americana Family: Ulmaceae. The Atlas of Florida Plants provides a source of information for the distribution of plants within the state and taxonomic information. Slippery Elm is a fairly common medium-large tree, named for its mucilaginous inner bark. USDA NRCS National Plant Data Center (NPDC). 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