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Quercus Austrina
''Quercus austrina'', the bastard white oak or bluff oak, is an oak species that is endemic to the southeastern United States from Mississippi to the Carolinas, with a few isolated populations in Arkansas. ''Quercus austrina'' can grow to a height of 45 to 60 feet (13.5–18 meters) with a spread of 35 to 50 feet (10.5–15 m). Leaves are narrow, with shallow rounded lobes. It tends to grow in wet habitats, such as on river bluffs, river bottoms, and flatwoods, and generally over basic substrates, such as mafic rocks, shells, or calcareous sediment. ''Quercus austrina'' specimens have often been misidentified as either '' Q. sinuata'' or ''Q. nigra.'' Quercus austrina is tolerant to clay, sand, loam, acidic, and well-drained soils. Also, it requires a lot of sun and its drought tolerance is high. National champion The largest known bluff oak in the United States appeared on the National Register of Champion Trees The National Register of Champion Trees is a list of the lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Kunkel Small
John Kunkel Small (January 31, 1869 – January 20, 1938) was an American botanist. Born on January 31, 1869, in Harrisburg Pennsylvania, Kunkel studied botany at Franklin & Marshall College and Columbia University. He was the first Curator of Museums at The New York Botanical Garden, a post in which he served from 1898 until 1906. From 1906 to 1934 he was Head Curator and then from 1934 until his death he was Chief Research Associate and Curator. Small's doctoral dissertation, published as '' Flora of the Southeastern United States'' in 1903, anrevised in 1913and 1933, remains the best floristic reference for much of the South. Assisted by the patronage of Charles Deering, Small traveled extensively around Florida recording plants and land formations. Small was an early botanist explorer of Florida, documenting many things for the first time, although the flora and fauna were well known to the local Seminole Indians. His first trip to the region was in 1901. Over the next 37 y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemism
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southeastern United States
The Southeastern United States, also referred to as the American Southeast or simply the Southeast, is a geographical region of the United States. It is located broadly on the eastern portion of the southern United States and the southern portion of the eastern United States. It comprises at least a core of states on the lower East Coast of the United States and eastern Gulf Coast. Expansively, it reaches as far north as West Virginia and Maryland (bordered to north by the Ohio River and Mason–Dixon line), and stretching as far west as Arkansas and Louisiana. There is no official U.S. government definition of the region, though various agencies and departments use different definitions. Geography The U.S. Geological Survey considers the Southeast region to be the states of Alabama, Florida, Georgia, Arkansas, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, and Tennessee, plus Puerto Rico and the United States Virgin Islands. There is no official Census Bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mississippi
Mississippi () is a state in the Southeastern region of the United States, bordered to the north by Tennessee; to the east by Alabama; to the south by the Gulf of Mexico; to the southwest by Louisiana; and to the northwest by Arkansas. Mississippi's western boundary is largely defined by the Mississippi River. Mississippi is the 32nd largest and 35th-most populous of the 50 U.S. states and has the lowest per-capita income in the United States. Jackson is both the state's capital and largest city. Greater Jackson is the state's most populous metropolitan area, with a population of 591,978 in 2020. On December 10, 1817, Mississippi became the 20th state admitted to the Union. By 1860, Mississippi was the nation's top cotton-producing state and slaves accounted for 55% of the state population. Mississippi declared its secession from the Union on January 9, 1861, and was one of the seven original Confederate States, which constituted the largest slaveholding states in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carolinas
The Carolinas are the U.S. states of North Carolina and South Carolina, considered collectively. They are bordered by Virginia to the north, Tennessee to the west, and Georgia to the southwest. The Atlantic Ocean is to the east. Combining North Carolina's population of 10,439,388 and South Carolina's of 5,118,425, the Carolinas have a collective population of 15,557,813 as of 2020. If the Carolinas were a single state of the United States, it would be the fifth-most populous state, behind California, Texas, Florida, and New York. The Carolinas were known as the Province of Carolina during America's early colonial period, from 1663 to 1710. Prior to that, the land was considered part of the Colony and Dominion of Virginia, from 1609 to 1663. The province, named ''Carolina'' to honor King Charles I of England, was divided into two royal colonies in 1729, although the actual date is the subject of debate. History The region was claimed as part of the Spanish territory named '' L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arkansas
Arkansas ( ) is a landlocked state in the South Central United States. It is bordered by Missouri to the north, Tennessee and Mississippi to the east, Louisiana to the south, and Texas and Oklahoma to the west. Its name is from the Osage language, a Dhegiha Siouan language, and referred to their relatives, the Quapaw people. The state's diverse geography ranges from the mountainous regions of the Ozark and Ouachita Mountains, which make up the U.S. Interior Highlands, to the densely forested land in the south known as the Arkansas Timberlands, to the eastern lowlands along the Mississippi River and the Arkansas Delta. Arkansas is the 29th largest by area and the 34th most populous state, with a population of just over 3 million at the 2020 census. The capital and most populous city is Little Rock, in the central part of the state, a hub for transportation, business, culture, and government. The northwestern corner of the state, including the Fayetteville–Springdaleâ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Sinuata
''Quercus sinuata'' is a species of oak comprising two distinct varieties, ''Quercus sinuata'' var. ''breviloba'' and ''Quercus sinuata'' var. ''sinuata'', occurring in southeast North America. Description ''Quercus sinuata'' is a deciduous tree up to 20 metres (67 feet) tall. Leaves are narrow, with shallow rounded lobes. It tends to grow in wet habitats, such as on river bluffs, river bottoms, and flatwoods, and generally over basic substrates, such as mafic rocks, shells, or calcareous sediment. There are two varieties, with morphologically intermediate forms sometimes occurring where their ranges overlap: * ''Quercus sinuata'' var. ''breviloba'' (Torr.) C.H.Mull. – Texas, Oklahoma, Mexico * ''Quercus sinuata'' var. ''sinuata'' – Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, Carolinas, Texas Common names Perhaps arising from the classification challenges posed by a lack of morphological consistency among individuals of the species, the common name basta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus Nigra
''Quercus nigra'', the water oak, is an oak in the red oak group (''Quercus'' sect. ''Lobatae''), native to the eastern and south-central United States, found in all the coastal states from New Jersey to Texas, and inland as far as Oklahoma, Kentucky, and southern Missouri. It occurs in lowlands and up to in elevation. Other names include spotted oak, duck oak, punk oak, orange oak, and possum oak. Description ''Quercus nigra'' is a medium-sized deciduous tree, growing to tall with a trunk up to in diameter. Young trees have a smooth, brown bark that becomes gray-black with rough scaly ridges as the tree matures. The leaves are alternate, simple and tardily deciduous, remaining on the tree until mid-winter; they are long and broad, variable in shape, most commonly shaped like a spatula being broad and rounded at the top and narrow and wedged at the base. The margins vary, usually being smooth to shallowly lobed, with a bristle at the apex and lobe tips. The tree is easy to i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drought Tolerance
Drought tolerance is the ability to which a plant maintains its biomass production during arid or drought conditions. Some plants are naturally adapted to dry conditions'','' surviving with protection mechanisms such as desiccation tolerance, detoxification, or repair of xylem embolism. Other plants, specifically crops like corn, wheat, and rice, have become increasingly tolerant to drought with new varieties created via genetic engineering. The plants behind drought tolerance are complex and involve many pathways which allows plants to respond to specific sets of conditions at any given time. Some of these interactions include stomatal conductance, carotenoid degradation and anthocyanin accumulation, the intervention of osmoprotectants (such as sucrose, glycine, and proline), ROS-scavenging enzymes. The molecular control of drought tolerance is also very complex and is influenced other factors such as environment and the developmental stage of the plant. This control consists ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Champion Trees
The National Register of Champion Trees is a list of the largest tree specimens found in the United States as reported to American Forests by the public. A tree on this list is called a National Champion Tree. The National Register of Champion Trees has been maintained since 1940 by American Forests. To be eligible, a species must be recognized as native or naturalized in the United States. American Forests uses the following formula to calculate a point score for each tree so that they may be compared to others: :Trunk Circumference (in inches) + Height (in feet) + 1/4 Average Crown Spread (in feet) = Total Points Americanforests.org The National Register of Champion Trees is updated yearly and is available to view online. In addition to the national list, states, counties, and cities maintain their own list of local Champion Trees. See also * The Big Tree, national champion Bur Oak in Missouri * Alabama Champion Tree Program * Arkansas Champion Tree Program * Flora of Door ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Forests
American Forests is a 501(c)(3) non-profit conservation organization, established in 1875, and dedicated to protecting and restoring healthy forest ecosystems. The current headquarters are in Washington, D.C. Activities The mission of American Forests is "Creating Healthy and Resilient Forests, from Cities to Wilderness, that Deliver Essential Benefits for Climate, People, Water and Wildlife." American Forests' activities comprise four separate program areas: rural forest restoration, equitable tree canopy in cites, the National Register of Champion Trees, and forest policy. In addition, the organization publishes a quarterly magazine. Reforestation of Rural Forest Landscapes Across North America, millions of acres of native forests have been lost or degraded by disasters like wildfires, pests, and disease, as well as human actions like mining, development, and widespread clearing for unsustainable practices. Forest restoration can bring native forests back — and all the natu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quercus
An oak is a tree or shrub in the genus ''Quercus'' (; Latin "oak tree") of the beech family, Fagaceae. There are approximately 500 extant species of oaks. The common name "oak" also appears in the names of species in related genera, notably '' Lithocarpus'' (stone oaks), as well as in those of unrelated species such as ''Grevillea robusta'' (silky oaks) and the Casuarinaceae (she-oaks). The genus ''Quercus'' is native to the Northern Hemisphere, and includes deciduous and evergreen species extending from cool temperate to tropical latitudes in the Americas, Asia, Europe, and North Africa. North America has the largest number of oak species, with approximately 160 species in Mexico of which 109 are endemic and about 90 in the United States. The second greatest area of oak diversity is China, with approximately 100 species. Description Oaks have spirally arranged leaves, with lobate margins in many species; some have serrated leaves or entire leaves with smooth margins. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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