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Ulmus Americana 'Valley Forge'
The American Elm cultivar ''Ulmus americana'' 'Valley Forge' was raised by the Agricultural Research Service in Maryland. The tree was released to wholesale nurseries without patent restrictions by the U. S. National Arboretum in 1995 after proving to have a high resistance to Dutch elm disease. 'Valley Forge' proved only moderately successful in the US National Elm Trial, averaging a survival rate of 66.7% overall, owing largely to environmental factors rather than susceptibility to disease. Description The branching is typically upright and arching, creating a broad vase-shaped structure complemented by a dense canopy of leaves. However, Michael A. Dirr, Professor of Horticulture at the University of Georgia criticized the tree's form as 'floppy'. The bark features greyish, flat-topped ridges, separated by roughly diamond-shaped fissures. The dark green leaves are large, Washington, D.C., US. Acc. nos. 76510, 68983. Europe *Grange Farm Arboretum, Sutton St James, Spalding, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulmus Americana
''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. The trees can live for several hundred years. It is a very Hardiness (plants), hardy species that can withstand low winter temperatures, but it is affected by Dutch elm disease. The wood was seldom utilized until the advent of mechanical sawing. It is the state tree of Massachusetts and North Dakota. Description The American elm is a deciduous tree which, under ideal conditions, can grow to heights of . The trunk may have a diameter at breast height (dbh) of more than , supporting a high, spreading umbrella-like canopy. The leaves are alternate, long, with double-serrate margins and an oblique base. The leaves turn yellow in the fall. The perfect flowers are small, purple-brown and, being wind-pollinated, apetalous. The flowers are also protogynous, the female parts maturing before the male, thus reducing, but not elimi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honeydew (secretion)
Honeydew is a sugar-rich sticky liquid, secreted by aphids, some scale insects, and many other true bugs and some other insects as they feed on plant sap. When their mouthpart penetrates the phloem, the sugary, high-pressure liquid is forced out of the anus of the insects, allowing them to rapidly process the large volume of sap required to extract essential nutrients present at low concentrations. Honeydew is particularly common as a secretion in hemipteran insects and is often the basis for trophobiosis. Some caterpillars of Lycaenidae butterflies and some moths also produce honeydew. In addition to various sugars, honeydew contains small amounts of amino acids, other organic compounds, and inorganic Salt (chemistry), salts with its precise makeup affected by factors such as insect species, host plant species, and whether a symbiotic organism is present. Honeydew-producing insects, like cicadas, pierce phloem ducts to access the sugar rich sap; the excess fluid released by ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iowa
Iowa ( ) is a U.S. state, state in the upper Midwestern United States, Midwestern region of the United States. It borders the Mississippi River to the east and the Missouri River and Big Sioux River to the west; Wisconsin to the northeast, Illinois to the east and southeast, Missouri to the south, Nebraska to the west, South Dakota to the northwest, and Minnesota to the north. Iowa is the List of U.S. states and territories by area, 26th largest in total area and the List of U.S. states and territories by population, 31st most populous of the List of states and territories of the United States, 50 U.S. states, with a population of 3.19 million. The state's List of capitals in the United States, capital, List of cities in Iowa, most populous city, and largest List of metropolitan statistical areas, metropolitan area fully located within the state is Des Moines, Iowa, Des Moines. A portion of the larger Omaha–Council Bluffs metropolitan area, Omaha, Nebraska, metropolitan area ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dallas Center
Dallas Center is a city in Dallas County, Iowa, United States. The population was 1,901 during the 2020 census. It is part of the Des Moines– West Des Moines Metropolitan Statistical Area. History Dallas Center got its start in the year 1869, following construction of the railroad through the territory. It was named for United States Vice President George M. Dallas. Dallas Center was incorporated on March 22, 1880. Geography According to the United States Census Bureau, the city has a total area of , all land. Dallas Center is located west-northwest of Des Moines and west of Grimes. Demographics 2020 census As of the census of 2020, there were 1,901 people, 721 households, and 492 families residing in the city. The population density was 360.7 inhabitants per square mile (139.3/km2). There were 755 housing units at an average density of 143.3 per square mile (55.3/km2). The racial makeup of the city was 94.9% White, 0.5% Black or African American, 0.2% Native Ameri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brenton Arboretum
The Brenton Arboretum is a 141-acre arboretum and public garden in Dallas Center, Iowa, United States, established in 1997. The arboretum displays 175 native Iowa trees and shrubs suitable to the site, as well as many other tree species which can grow in central Iowa. The non-profit arboretum is open to the public from 9 am to sunset on Tuesday through Sunday, featuring a collection of over 2,600 trees and shrubs on display. The arboretum was founded by Sue and J.C. (Buz) Brenton and their children, on land which was part of the original Home Farm acquired by Dr. James Brenton and his son, William Henry, soon after they arrived from Indiana in 1853 by covered wagon. Its first trees were planted in 1997. The master plan was created by Anthony Tyznik of Batavia, Illinois, who for many years was the landscape architect for the Morton Arboretum in Chicago, Illinois. The arboretum has a lake, pond, wetlands, several streams, walking paths, bridges, prairies, wildflowers and a small ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arnold Arboretum
The Arnold Arboretum is a botanical research institution and free public park affiliated with Harvard University and located in the Jamaica Plain and Roslindale, Massachusetts, Roslindale neighborhoods of Boston. Established in 1872, it is the oldest public arboretum in North America. The landscape was designed by Charles Sprague Sargent and Frederick Law Olmsted and is the second largest "link" in the Emerald Necklace. The Arnold Arboretum's collection of temperate trees, shrubs, and vines has an emphasis on the plants of the eastern North America and eastern Asia, where Arboretum staff and colleagues are sourcing new material on plant collecting expeditions. The Arboretum supports research in its landscape and in its Weld Hill Research Building. History The Arboretum was founded in 1872. It was established through land and financial gifts from Benjamin Bussey and James Arnold, with trustee George Barrell Emerson facilitating its creation. Harvard appointed Charles Sprague Sar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American War Of Independence
The American Revolutionary War (April 19, 1775 – September 3, 1783), also known as the Revolutionary War or American War of Independence, was the armed conflict that comprised the final eight years of the broader American Revolution, in which American Patriot forces organized as the Continental Army and commanded by George Washington defeated the British Army. The conflict was fought in North America, the Caribbean, and the Atlantic Ocean. The war's outcome seemed uncertain for most of the war. However, Washington and the Continental Army's decisive victory in the Siege of Yorktown in 1781 led King George III and the Kingdom of Great Britain to negotiate an end to the war in the Treaty of Paris two years later, in 1783, in which the British monarchy acknowledged the independence of the Thirteen Colonies, leading to the establishment of the United States as an independent and sovereign nation. In 1763, after the British Empire gained dominance in North America following its vic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philadelphia
Philadelphia ( ), colloquially referred to as Philly, is the List of municipalities in Pennsylvania, most populous city in the U.S. state of Pennsylvania and the List of United States cities by population, sixth-most populous city in the United States, with a population of 1,603,797 in the 2020 United States census, 2020 census. The city is the urban core of the Philadelphia metropolitan area (sometimes called the Delaware Valley), the nation's Metropolitan statistical area, seventh-largest metropolitan area and ninth-largest combined statistical area with 6.245 million residents and 7.379 million residents, respectively. Philadelphia was founded in 1682 by William Penn, an English Americans, English Quakers, Quaker and advocate of Freedom of religion, religious freedom, and served as the capital of the Colonial history of the United States, colonial era Province of Pennsylvania. It then played a historic and vital role during the American Revolution and American Revolutionary ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australasia
Australasia is a subregion of Oceania, comprising Australia, New Zealand (overlapping with Polynesia), and sometimes including New Guinea and surrounding islands (overlapping with Melanesia). The term is used in a number of different contexts, including geopolitically, physiogeographically, philologically, and ecologically, where the term covers several slightly different but related regions. Derivation and definitions Charles de Brosses coined the term (as French ''Australasie'') in ''Histoire des navigations aux terres australes'' (1756). He derived it from the Latin for "south of Asia" and differentiated the area from Polynesia (to the east) and the southeast Pacific ( Magellanica). In the late 19th century, the term Australasia was used in reference to the "Australasian colonies". In this sense it related specifically to the British colonies south of Asia: New South Wales, Queensland, South Australia, Tasmania, Western Australia, Victoria (i.e., the Australian colon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Minnesota
The University of Minnesota Twin Cities (historically known as University of Minnesota) is a public university, public Land-grant university, land-grant research university in the Minneapolis–Saint Paul, Twin Cities of Minneapolis and Saint Paul, Minnesota, United States. It is the Flagship#Colleges and universities in the United States, flagship institution of the University of Minnesota System and is organized into 19 colleges, schools, and other major academic units. The Twin Cities campus is the oldest and largest in the University of Minnesota system and has the List of United States university campuses by enrollment, ninth-largest (as of the 2022–2023 academic year) main campus student body in the United States, with 54,890 students at the start of the 2023–24 academic year. The campus comprises locations in Minneapolis and Falcon Heights, Minnesota, Falcon Heights, a suburb of St. Paul, approximately apart. The Minnesota Territorial Legislature drafted a charter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atherton, California
Atherton ( ) is an incorporated town in San Mateo County, California, United States. Its population was 6,823 as of July 2023 estimates. The town's zoning regulations permit only one single-family home per acre in new subdivisions, though smaller lots exist from prior zoning laws. Atherton is known for its high concentration of wealth; in 1990 and 2019, Atherton was ranked as having the highest per capita income among U.S. places that have a population between 2,500 and 9,999,Archive o"1990 CPH-L-126. Median Family Income for Places with a Population of 2,500 to 9,999, Ranked Within the United States: 1989" United States Census Bureau1990 CPH-L-126F.html Original page/ref> and is regularly ranked as having the highest cost of living in the United States. In 2023, Atherton had the highest median home prices in the United States, at $7,950,000. History The entire area was originally part of the Rancho de las Pulgas. During the 1860s, Atherton was known as Fair Oaks. In 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lulworth
Lulworth is the popular name for an area on the coast of Dorset, South West England notable for its castle and cove. However, there is no actual place or feature called simply "Lulworth", the villages are East and West Lulworth and the coastal feature is Lulworth Cove. See: *East Lulworth (village) *Lulworth Castle * Lulworth Cove (a tourist location / bay) * Lulworth Estate * Lulworth Ranges and associated Lulworth Camp *West Lulworth West Lulworth is a village and Civil parishes in England, civil parish in the England, English county of Dorset, situated on the English Channel beside Lulworth Cove. In the United Kingdom Census 2011, 2011 census the civil parish—which includ ... (village) * S/Y Lulworth (1920 yacht) External links Villages in Dorset Jurassic Coast {{Dorset-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
