Siberian elm
ulmus pumila latin

High numbers of Siberian elms were also found in many communities.

Three Siberian elms were also planted on what was a tiny traffic island.

Another was a struggle over whether to cut down the Siberian elms that tower over the site.

Their shade trees, including a 65-year-old Siberian elm, are an arborist's dream.

Poplar and Siberian elm are fast-growing but short-lived on the prairies.

Not surprisingly most of these were Siberian Elms.

The tree was usually propagated by grafting on Siberian Elm seedlings.

The most common trees along the stream side are box elder and cottonwood as well as the Siberian elm, which was an introduced invasive species.

The root systems of some species, including willow, Siberian elm, maple and poplar, are very fibrous and competitive.

Hamburg' has been described as a hardy, very rapid grower, with much stronger branching than the Siberian Elm.

All four have the Siberian elm U. pumila as a parent, the source of disease-resistance and drought-tolerance genes.

Thousands of attempts to cross the American elm with the Siberian elm U. pumila failed.

Since the Siberian Elm is drought-tolerant, in dry countries new varieties of elm are often root-grafted on this species.

Moreover, its planting, as a clone of the Siberian Elm, is prohibited in Nevada and Oregon.

Standing next to a humongous tree labeled a Siberian elm, Mr. Benepe is perturbed.

• Competition from other trees - Siberian elm and poplars are very competitive trees and should not be planted adjacent to spruce.

Siberian elm (Ulmus pumila)

However, commercial propagation is commonly by grafting onto a Siberian Elm Ulmus pumila rootstock.

Certain trees considered invasive or susceptible to pests are ineligible, including Norway maple, Bradford pear, Siberian elm and ash.

The Siberian Elm cultivar Ulmus pumila 'Variegata' is of uncertain, but probably European, provenance.

Evaluation of the Siberian Elm (Ulmus pumila), USDA.

Germination and survival of Colorado spruce, Scots pine, caragana, and Siberian elm at four salinity and two moisture levels.

There are hazelnut trees from Asia Minor, Siberian elms, Japanese cherry trees, ash trees, willows, black walnuts, and others.

The Mitchell area is home to several state champion trees: Black Cherry, Black Locust, Siberian Elm, and Tulip Tree.

In prairie and urban areas where trees are planted for ornamental and shelterbelt purposes, they seem to prefer birches, blue spruce, Scots pine, and Siberian elm.

The larvae feed on Malus, Amelanchier and Ulmus pumila.

Siberian elm (Ulmus pumila)

However, commercial propagation is commonly by grafting onto a Siberian Elm Ulmus pumila rootstock.

Evaluation of the Siberian Elm (Ulmus pumila), USDA.

As with 'Koopmannii', 'Berardii' is treated in some north Eurasian treatises as a cultivar of the Siberian Elm Ulmus pumila.

The Ulmus pumila cultivar 'Aurescens' was introduced by Georg Dieck at the National Arboretum, Zöschen, Germany circa 1885.

Arising from a chance crossing in 1958 of the Siberian Elm Ulmus pumila (female parent) and the Japanese Elm Ulmus davidiana var.

Ulmus 'Arno' is an Italian hybrid cultivar derived from a crossing of 'Plantyn' (female parent) with the Siberian Elm Ulmus pumila clone S.2.

However, DNA analysis later revealed that 'Fuente Umbria' had Siberian Elm Ulmus pumila in its ancestry, which disqualified it for use in Spanish forestry.

Introduced to the USA in 1905 by Prof. J. G. Jack,Ulmus pumila has been widely cultivated throughout the Americas, Asia and, to a lesser extent, southern Europe.

In North America, Ulmus pumila has become an invasive species in much of the region from central Mexico northward across the eastern and central United States to Ontario, Canada.

Thomson' attained a height of 8 m in 25 years, a rather modest performance compared with Siberian Elm Ulmus pumila and American Elm Ulmus americana grown at the same site.

Other grafting stock has been used, including Dutch elm Ulmus x hollandica, Siberian elm Ulmus pumila, and English elm Ulmus atinia (although this ultimately produces suckers).

On the callus of a susceptible elm (Ulmus americana), the elicitors from both isolates cause higher amounts of mansonone production than on the callus of a resistant elm (Ulmus pumila).

The majority of the larger trees are Huntingdon Elms planted in the 1920s, but nearer the entrance to the Skate Park there is a fine example of a hybrid of the Siberian Elm Ulmus pumila.

Almost certainly derived from a crossing of the Siberian Elm Ulmus pumila (female parent) and the Red Elm Ulmus rubra, it was originally believed that the male parent was the American Elm Ulmus americana.

In Italy, 'Plantyn' was used in hybridizations with the Siberian Elm Ulmus pumila by the Istituto per la Protezione delle Piante (IPP), to create three new cultivars released to commerce (see Hybrid cultivars).

Exoniensis' also indirectly featured in the Italian elm breeding programme as an ancestor of 'Plantyn', which was commonly crossed with clones of the Siberian Elm Ulmus pumila to produce the cultivars 'Arno', 'Plinio', and 'San Zanobi'.

Ulmus 'New Horizon' is an American hybrid cultivar raised by the Wisconsin Alumni Research Foundation (WARF), from a crossing of Siberian Elm Ulmus pumila (female parent) with Japanese Elm Ulmus davidiana var.

The hybrid elm cultivar Ulmus 'Hamburg' was originally raised by the Plumfield Nurseries, Fremont, Nebraska, circa 1932, after its discovery by Mr. Lloyd Moffet in a bed of Siberian Elm Ulmus pumila seedlings from Tekamah.

Ulmus 'Coolshade' is an American hybrid cultivar cloned from a crossing of the Slippery, or Red, Elm Ulmus rubra (female parent) and the Siberian Elm Ulmus pumila at the Sarcoxie Nurseries, Sarcoxie, Missouri, in 1946.

Diethyl ether-petroleum ether extracts were prepared from 49 samples of bark from four elm species (Ulmus glabra Hudson, Ulmus laevis Pall, Ulmus minor Miller, and Ulmus pumila L.) and hybrids from crosses between three of these species.

The American hybrid elm cultivar Ulmus 'Lincoln' was selected from crossings of the Slippery, or Red, Elm Ulmus rubra (female parent) and the Siberian Elm Ulmus pumila made in Aurora, Illinois circa 1958 and patented in 1983.

The Siberian Elm cultivar Ulmus pumila 'Green King' was once believed to have been derived from a crossing of the Siberian Elm Ulmus pumila with the American Red Elm Ulmus rubra.