Elm in the context of "Montane ecosystems"

A samara (/səˈmɑːrə/, UK also: /ˈsæmərə/) is a winged achene, a type of fruit in which a flattened wing of fibrous, papery tissue develops from the ovary wall. A samara is a simple dry fruit, and is indehiscent (not opening along a seam). The shape of a samara enables the wind to carry the seed further away from the tree than regular seeds would go, and is thus a form of anemochory.

In some cases the seed is in the centre of the wing, as in the elms (genus Ulmus), the hoptree (Ptelea trifoliata), and the bushwillows (genus Combretum). In other cases the seed is on one side, with the wing extending to the other side, making the seed autorotate as it falls, as in the maples (genus Acer) and ash trees (genus Fraxinus).

Temperate deciduous or temperate broadleaf forests are a variety of temperate forest 'dominated' by deciduous trees that lose their leaves each winter. They represent one of Earth's major biomes, making up 9.69% of global land area. These forests are found in areas with distinct seasonal variation that cycle through warm, moist summers, cold winters, and moderate fall and spring seasons. They are most commonly found in the Northern Hemisphere, with particularly large regions in eastern North America, East Asia, and a large portion of Europe, though smaller regions of temperate deciduous forests are also located in South America. Examples of trees typically growing in the Northern Hemisphere's deciduous forests include oak, maple, basswood, beech and elm, while in the Southern Hemisphere, trees of the genus Nothofagus dominate this type of forest. Temperate deciduous forests provide several unique ecosystem services, including habitats for diverse wildlife, and they face a set of natural and human-induced disturbances that regularly alter their structure.

A shade tree is a large tree whose primary role is to provide shade in the surrounding environment due to its spreading canopy and crown, where it may give shelter from sunlight in the heat of the summer for people who seek recreational needs in urban parks and house yards, and thus, also protecting them from the sun's harmful UV rays.

Some of the most popular shade trees in temperate countries are oaks, plane trees, willows, birches, beeches, maples, ashes, lindens, and elms. In subtropical countries like Australia and India, figs are popular choices as shade trees. In tropical countries, trees such as some Erythrina and African tulip tree species are often planted as shade trees.

Zelkova (from the Georgian dzelkva, 'stone pillar') is a genus of six species of deciduous trees in the elm family Ulmaceae, native to southern Europe, and southwest and eastern Asia. They vary in size from shrubs (Z. sicula) to large trees up to 35 m (115 ft) tall (Z. carpinifolia). The bark is smooth, dark brown. Unlike elms, the branchlets are never corky or winged. The leaves are alternate, with serrated margins, and (unlike the related elms) a symmetrical base to the leaf blade. The leaves are in two distinct rows; they have pinnate venation and each vein extends to the leaf margin, where it terminates in a tooth. There are two stipules at each node, though these are caducous (shed early), leaving a pair of scars at the leaf base. Zelkova is polygamous. Staminate flowers are clustered in the lower leaf axils of young branchlets; the perianth is campanulate, with four to six (to seven) lobes, and the stamens are short. Pistillate and hermaphrodite flowers are solitary, or rarely in clusters of two to four, in the upper leaf axils of young branchlets. The fruit is a dry, nut-like drupe with a dorsal keel, produced singly in the leaf axils. The perianth and stigma are persistent.

The Ieperlee (or Ypres-Ijzer Canal) is a canalized river that rises in Heuvelland in the Belgian province of West Flanders and flows via the city of Ypres (Ieper) into the Yser at Fort Knokke.

The river is 17 kilometres (11 mi) long. Its name is derived from iep, the Dutch word for elm. It gave its name to the city of Ypres. In the 11th century the river was canalized to link the city, which had a thriving cloth industry, to the sea. Even in 1842, some 2,034 boats still passed the lock at Boezinge. Today, the canal is only used for recreational purposes.

Hungarian prehistory (Hungarian: magyar őstörténet) spans the period of history of the Hungarian people, or Magyars, which started with the separation of the Hungarian language from other Ugric languages around 800 BC, and ended with the Hungarian conquest of the Carpathian Basin around 895 AD. Based on the earliest records of the Magyars in Byzantine, Western European, and Hungarian chronicles, scholars considered them for centuries to have been the descendants of the ancient Scythians and Huns. This historiographical tradition disappeared from mainstream history after the realization of similarities between the Hungarian and Uralic languages in the late 18th century. After the 2000s, archaeological research aimed at exploring the early history of the Hungarians resumed, with a primary focus on the Ural Mountains and Siberia. Today, these efforts are regularly supplemented with archaeogenetic studies. In addition to linguistics, archaeology, and archaeogenetics, the re-evaluation of well-known written sources has also begun. Together, these fields of study may provide new information regarding the origins of the Hungarian people.

Study of pollen in fossils based on cognate words for certain trees – including larch and elm – in the daughter languages suggests the speakers of the Proto-Uralic language lived in the wider region of the Ural Mountains, which were inhabited by scattered groups of Neolithic hunter-gatherers in the 4th millennium BC. Linguistic studies and archaeological research evidence that those who spoke this language lived in pit-houses and used decorated clay vessels. The expansion of marshlands after around 2600 BC caused new migrations. No scholarly consensus on the Urheimat, or original homeland, of the Ugric peoples exists: they lived either in the region of the Tobol River or along the Kama River and the upper courses of the Volga River around 2000 BC. They lived in settled communities, cultivated millet, wheat, and other crops, and bred animals – especially horses, cattle, and pigs. Loan words connected to animal husbandry from Proto-Iranian show that they had close contacts with their neighbors. The southernmost Ugric groups adopted a nomadic way of life by around 1000 BC, because of the northward expansion of the steppes.

The Yulin Caves (Chinese: 榆林窟; pinyin: Yulin kū) is a Buddhist cave temple site in Guazhou County, Gansu Province, China. The site is located some 100 km (62 mi) east of the oasis town of Dunhuang and the Mogao Caves. It takes its name from the elm trees lining the Yulin River, which flows through the site and separates the two cliffs from which the caves have been excavated. The forty-two caves house some 250 polychrome statues and 4,200 m (45,000 sq ft) of wall paintings, dating from the Tang dynasty to the Yuan dynasty (seventh to fourteenth centuries). The site was among the first to be designated for protection in 1961 as a Major National Historical and Cultural Site. In 2008 the Yulin Grottoes were submitted for future inscription on the UNESCO World Heritage List as part of the Chinese Section of the Silk Road.

Villa Olmo is a neoclassical villa located in the city of Como, northern Italy.

The villa was commissioned by Marquis Innocenzo Odescalchi to Swiss architect Simone Cantoni to have a summer retreat alongside the lake in 1782. Works started in 1797 and were completed in 1812. The villa was named after an elm tree, no longer alive today, planted in the middle of the ornate gardens. About 800 varieties of trees still grow here.

The Liberty Tree (1646–1775) was a famous elm tree that stood in Boston, Massachusetts near Boston Common in the years before the American Revolution. In 1765, Patriots in Boston staged the first act of defiance against the British government at the tree. The tree became a rallying point for the growing resistance to the rule of Britain over the American colonies, and the ground surrounding it became known as Liberty Hall. The Liberty Tree was felled in August 1775 by Loyalists led by Nathaniel Coffin Jr. or by Job Williams.