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Rayjacksonia
''Rayjacksonia'' is a genus of North American flowering plants in the family Asteraceae. It is one of several genera with the common name tansyaster. The genus is named in honor of American botanist Raymond Carl Jackson Raymond "Ray" Carl Jackson (7 May 1928, Medora, Indiana – 7 April 2008, Lubbock, Texas) was an American botanist, known "for his work in cytogenetics, particularly on polyploidy, and for his discovery of low chromosome numbers in angiosperms." .... ; Species * '' Rayjacksonia annua'' (Rydb.) R.L.Hartm. & M.A.Lane - TX OK NM CO KS NE WY * '' Rayjacksonia aurea'' (A.Gray) R.L.Hartm. & M.A.Lane - Texas * '' Rayjacksonia phyllocephala'' (DC.) R.L.Hartm. & M.A.Lane Tamaulipas, TX LA MS FL References Asteraceae genera Astereae Flora of North America {{Astereae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rayjacksonia Annua
''Rayjacksonia'' is a genus of North American flowering plants in the family Asteraceae. It is one of several genera with the common name tansyaster. The genus is named in honor of American botanist Raymond Carl Jackson Raymond "Ray" Carl Jackson (7 May 1928, Medora, Indiana – 7 April 2008, Lubbock, Texas) was an American botanist, known "for his work in cytogenetics, particularly on polyploidy, and for his discovery of low chromosome numbers in angiosperms." .... ; Species * '' Rayjacksonia annua'' (Rydb.) R.L.Hartm. & M.A.Lane - TX OK NM CO KS NE WY * '' Rayjacksonia aurea'' (A.Gray) R.L.Hartm. & M.A.Lane - Texas * '' Rayjacksonia phyllocephala'' (DC.) R.L.Hartm. & M.A.Lane Tamaulipas, TX LA MS FL References Asteraceae genera Astereae Flora of North America {{Astereae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rayjacksonia Phyllocephala
''Rayjacksonia'' is a genus of North American flowering plants in the family Asteraceae. It is one of several genera with the common name tansyaster. The genus is named in honor of American botanist Raymond Carl Jackson. ; Species * ''Rayjacksonia annua ''Rayjacksonia'' is a genus of North American flowering plants in the family Asteraceae. It is one of several genera with the common name tansyaster. The genus is named in honor of American botanist Raymond Carl Jackson Raymond "Ray" Carl Ja ...'' (Rydb.) R.L.Hartm. & M.A.Lane - TX OK NM CO KS NE WY * '' Rayjacksonia aurea'' (A.Gray) R.L.Hartm. & M.A.Lane - Texas * '' Rayjacksonia phyllocephala'' (DC.) R.L.Hartm. & M.A.Lane Tamaulipas, TX LA MS FL References Asteraceae genera Astereae Flora of North America {{Astereae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rayjacksonia Aurea
''Rayjacksonia aurea'' is a species of flowering plant in the family Asteraceae known by the common names Houston tansyaster and Houston camphor daisy. It is endemic to Texas in the United States, where it is known only from the Houston area. It is limited to Galveston and Harris Counties.''Machaeranthera aurea''. The Nature Conservancy.''Rayjacksonia aurea''. Center for Plant Conservation. Description This species is an annual herb which generally remains small in its native habitat but in cultivation may be much larger. It grows from a[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raymond Carl Jackson
Raymond "Ray" Carl Jackson (7 May 1928, Medora, Indiana – 7 April 2008, Lubbock, Texas) was an American botanist, known "for his work in cytogenetics, particularly on polyploidy, and for his discovery of low chromosome numbers in angiosperms." Biography After three years of service in the U.S. Army Air Forces/U.S. Air Force, Jackson matriculated in 1949 at Indiana University, where he graduated with bachelor's degree in 1952 and master's degree in 1953. In 1953 he became a graduate student at Purdue University, where he graduated in 1955 with Ph.D. in botany. From 1955 to 1958 he was a faculty member and herbarium curator at the University of New Mexico. In New Mexico he studied the dessert annual ''Xanthisma gracile'' (synonym ''Haplopappus gracilis'') and found that it has "n=2 chromosomes, the lowest number ever reported for a plant." From 1958 to 1971 he was a professor of botany at the University of Kansas, where in 1969 he was appointed chair of the botany department. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astereae
Astereae is a tribe of plants in the family Asteraceae that includes annuals, biennials, perennials, subshrubs, shrubs, and trees. They are found primarily in temperate regions of the world. Plants within the tribe are present nearly worldwide divided into over 250 genera and more than 3,100 species, making it the second-largest tribe in the family behind Senecioneae. The taxonomy of the tribe Astereae has been dramatically changed after both morphologic and molecular evidence suggested that large genera such as '' Aster'', as well as many others, needed to be separated into several genera or shifted to better reflect the plants' relationships. A paper by R. D. Noyes and L. H. Rieseberg showed that most of the genera within the tribe in North America actually belong to a single clade, meaning they have a common ancestor. This is referred to as the North American clade. Guy L. Nesom and Harold E. Robinson have been involved in the recent work and are continuing to re-categoris ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nebraska
Nebraska () is a state in the Midwestern region of the United States. It is bordered by South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Kansas to the south; Colorado to the southwest; and Wyoming to the west. It is the only triply landlocked U.S. state. Indigenous peoples, including Omaha, Missouria, Ponca, Pawnee, Otoe, and various branches of the Lakota ( Sioux) tribes, lived in the region for thousands of years before European exploration. The state is crossed by many historic trails, including that of the Lewis and Clark Expedition. Nebraska's area is just over with a population of over 1.9 million. Its capital is Lincoln, and its largest city is Omaha, which is on the Missouri River. Nebraska was admitted into the United States in 1867, two years after the end of the American Civil War. The Nebraska Legislature is unlike any other American legislature in that it is unicameral, and its members are elected ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteraceae Genera
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae were first described in the year 1740. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger family is unclear as the quantity of extant species in each family is unknown. Most species of Asteraceae are annual, biennial, or perennial herbaceous plants, but there are also shrubs, vines, and trees. The family has a widespread distribution, from subpolar to tropical regions in a wide variety of habitats. Most occur in hot desert and cold or hot semi-desert climates, and they are found on every continent but Antarctica. The primary common characteristic is the existence of sometimes hundreds of tiny individual florets which are held together by protective involucres in flower heads, or more technically ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Florida
Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to the south by the Straits of Florida and Cuba; it is the only state that borders both the Gulf of Mexico and the Atlantic Ocean. Spanning , Florida ranks 22nd in area among the 50 states, and with a population of over 21 million, it is the third-most populous. The state capital is Tallahassee, and the most populous city is Jacksonville. The Miami metropolitan area, with a population of almost 6.2 million, is the most populous urban area in Florida and the ninth-most populous in the United States; other urban conurbations with over one million people are Tampa Bay, Orlando, and Jacksonville. Various Native American groups have inhabited Florida for at least 14,000 years. In 1513, Spanish explorer Juan Ponce de León became the first k ... [...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] |
Louisiana
Louisiana , group=pronunciation (French: ''La Louisiane'') is a state in the Deep South and South Central regions of the United States. It is the 20th-smallest by area and the 25th most populous of the 50 U.S. states. Louisiana is bordered by the state of Texas to the west, Arkansas to the north, Mississippi to the east, and the Gulf of Mexico to the south. A large part of its eastern boundary is demarcated by the Mississippi River. Louisiana is the only U.S. state with political subdivisions termed parishes, which are equivalent to counties, making it one of only two U.S. states not subdivided into counties (the other being Alaska and its boroughs). The state's capital is Baton Rouge, and its largest city is New Orleans, with a population of roughly 383,000 people. Some Louisiana urban environments have a multicultural, multilingual heritage, being so strongly influenced by a mixture of 18th century Louisiana French, Dominican Creole, Spanish, French Canadian, Acadi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tamaulipas
Tamaulipas (), officially the Free and Sovereign State of Tamaulipas ( es, Estado Libre y Soberano de Tamaulipas), is a state in the northeast region of Mexico; one of the 31 states which, along with Mexico City, comprise the 32 Federal Entities of Mexico. It is divided into 43 municipalities. Tamaulipas is bordered by the states of Nuevo León to the west, San Luis Potosí to the southwest, and Veracruz to the southeast. To the north, it has a stretch of the U.S.–Mexico border with the state of Texas, and to the east it is bordered by the Gulf of Mexico. In addition to the capital city, Ciudad Victoria, the state's largest cities include Reynosa, Matamoros, Nuevo Laredo, Tampico, and Mante. Etymology The name Tamaulipas is derived from ''Tamaholipa'', a Huastec term in which the ''tam-'' prefix signifies "place (where)". No scholarly agreement exists on the meaning of ''holipa'', but "high hills" is a common interpretation. Another explanation of the state name is tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wyoming
Wyoming () is a U.S. state, state in the Mountain states, Mountain West subregion of the Western United States. It is bordered by Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho to the west, Utah to the southwest, and Colorado to the south. With a population of 576,851 in the 2020 United States census, Wyoming is the List of U.S. states and territories by population, least populous state despite being the List of U.S. states and territories by area, 10th largest by area, with the List of U.S. states by population density, second-lowest population density after Alaska. The state capital and List of municipalities in Wyoming, most populous city is Cheyenne, Wyoming, Cheyenne, which had an estimated population of 63,957 in 2018. Wyoming's western half is covered mostly by the ranges and rangelands of the Rocky Mountains, while the eastern half of the state is high-elevation prairie called the High Plains (United States), High Plains. It is drier ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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