Ulmus thomasii Sarg., the Rock Elm or Cork Elm, is a deciduous tree native primarily to the Midwestern United States.The tree ranges from southern Ontario and Quebec, south to Tennessee, west to northeastern Kansas, and north to Minnesota. A Field Guide to Eastern Trees. org/ articles/ ulmus/ ulmus-thomasii/). Copyright for Volumes 24 and 25 is held by Utah State University. Many trees have few branches until near the cylindrical crown. (2002) p 396 Parts Shown: Fruit, Habit, Leaf, Twig Art. A. merican elm has been decimated by Dutch elm disease which was brought from Europe in the 1930s. [3] Where forest-grown, the crown is cylindrical and upright with short branches, and is narrower than most other elms. For the town in Wisconsin, see Rock Elm, Wisconsin. Ulmus thomasii (meisse) bark.jpg 731 × 1,023; 575 KB Ulmus thomasii (meisse) corky wings.jpg 1,084 × 517; 241 KB Ulmus thomasii (meisse) leaves 2.jpg 1,181 × 788; 491 KB Common names are from state and federal lists. Ulmus thomasii is a medium-sized tree, commonly reaching up to 70 to 80 feet in height, and occasionally up to 100 feet (Burns and Honkala 1990), and may live for up to 300 years. Slippery elm: Ulmus rubra . Printed in Great Britain. [3] Etymology . Inflorescences racemose cymes, long-pendulous, (7-)10(-13)-flowered, to 5 cm; pedicel 0.5-1 cm. Leaves: petiole ca. Image 1219247 is of rock elm (Ulmus thomasii ) bark. trusted. It is for this reason the rock elm is sometimes called the cork elm. Ulmus thomasii grows as a tree from 15–30 m (50–100 feet) tall, and may live for <300 years. Ulmus rubra Muhl. Ses petites feuilles elliptiques à ovales dentées vert-luisant persistent … Ulmus davidiana is a deciduous Tree growing to 15 m (49ft 3in). From Wikimedia Commons, the free media repository. Ulmus thomasii. Ulmus thomasii grows as a tree from 50-100 feet (15–30 m) tall, and may live up to 300 years. The tree was named in 1902 for David Thomas, an American civil engineer, who had first named and described the tree in 1831 as Ulmus racemosa. It prefers rocky areas. Furthermore, sprout leaves of rock elm can be scabrous above. Image 5443577 is of rock elm (Ulmus thomasii ) bark. Silva N. Amer. Older branches are hairless, the bark turning gray, becoming thick and corky in the fourth year. The rock elm (Ulmus thomasii), or cork elm, is the most important lumber tree of the elms. cork elm in English klippalm in Swedish orme de Thomas in … Image 1219256 is of rock elm (Ulmus thomasii ) bark. Rock Elm, University of Guelph Arboretum Ulmus thomasii Sarg. Recommended citation 'Ulmus thomasii' from the website Trees and Shrubs Online (treesandshrubsonline. Where forest-grown, the crown is cylindrical and upright with short branches, and is narrower than most other elms. French: Orme des rochers; Local Common Names. Rock elm is also unusual among North American elms in that it is often monopodial. Suitable for: light (sandy), medium (loamy) and heavy (clay) … Purdue University folks identified the wood for me as red elm, but it is pretty dense and rot resistant. For the Rock Elm Crater, see Rock Elm Disturbance. Found mainly in southeastern Iowa. Rock Elm is the rarest of the Elm trees in Ontario. Bark gray, deeply fissured with broad, flattened ridges. ︎ Map by county ( USA-48), ︎ map (North America, Central America). cork elm in English klippalm in Swedish orme de Thomas in French orme liège in French It is smaller than the American elm and has a straight trunk and oblong crown. The bark is grey-brown and … T. R. Crow. Simple, alternate on stem, length 2" to 4"; deep green, doubly toothed margins, uneven base; turns yellow in autumn. Ulmus thomasii Sarg. 2. the hard, heavy wood of this tree, used for making furniture and in the manufacture of various types of containers. Ulmus thomasii, the rock elm or cork elm, is a deciduous tree native primarily to the Midwestern United States. 5 mm, pubescent. Commonly found on bottomlands in the eastern and south-central parts of the state, especially in the Minnesota River Valley, and continues as far northward as Clearwater County. Branches short-spreading, young branches pubescent, old-growth with 3-5 prominent, irregular, corky wings; twigs reddish, pubescent. There are no related plants for species Ulmus thomasii. Deciduous tree to 25 m with a strong central trunk. Rock Elm, University of Guelph Arboretum. It is by Bill Cook at Michigan State University. A number of Eurasian elms are planted as shade and ornamental trees, and more may yet be found as escapes. Ash gray; divided by deep fissures into broad, flat ridges; outer bark layers alternating white and brown in cross section. & Cronquist, Arthur J. Rock elm; Rock elm, Meise. cc-publicdomain. The volume of elm showed some signs of recovery after 1996 with increased growth rates and increased numbers of trees , but most recently, increased mortality rates are again Preferred Common Name. Location in Ontario Rock Elm grows throughout the Deciduous Forest Region, and further north. Ulmus procera Salisb., English elm, has been reported from Ontario. Flowers: calyx deeply lobed, divided nearly to middle, lobes 7-8; stamens 5-8; anthers dark purple; stigmas greenish, pubescent. Common names Felsenulme in German Rock elm in language. It prefers rocky areas. Samaras elliptic to oval, 1.5-2.2 cm, narrowly winged, pubescent, margins short-ciliate, apex shallowly notched. The barkis grey-brown and deeply furrowed into scaly, flattened ridges. Ulmus thomasii Sarg. The Illustrated Encyclopedia of Trees. It is hardy to zone (UK) 4 and is not frost tender. It is in flower in May, and the seeds ripen in June. 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