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Amsonia Orientalis
''Amsonia orientalis'', the European bluestar, is a species of flower in the dogbane family. It is found in European Turkey, and may be extirpated from Greece. Other historical populations appear to be lost. It is threatened by habitat loss, collection for ornamental use, and over-harvesting for research. It contains many glycosides and glycoalkaloids, and also has broad antimicrobial activity. ''Amsonia orientalis'' is the only European member of its genus. One other species (''Amsonia elliptica'' (Thunb.) Roem. & Schult.) is found in East Asia, while all the others are native to North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car .... References orientalis Critically endangered plants Flora of Turkey Flora of Greece Plants described in 1843 Taxa named by Jose ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The IUCN Red List Of Threatened Species
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit. The aim of the IUCN Red List is to convey the urgency of conservation issues to the public and policy makers, as well as help the international community to reduce species extinction. According to IUCN the formally stated goals of the Red List are to provide sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amsonia Elliptica
''Amsonia'' is a genus of flowering plants in the dogbane family, Apocynaceae, first described as a genus in 1788. It is native primarily to North America with one species in East Asia and another in the eastern Mediterranean. It was named in honor of the American physician John Amson John Amson (1698 – death unknown, possibly 1765) was an English physician and amateur botanist who moved to Virginia and served as alderman and mayor of Williamsburg, during the Colonial period, from 1750 to 1751. Biography Amson owned lo .... Members of the genus are commonly known as bluestars. ;Species # '' Amsonia ciliata'' Walter – fringed bluestar – SE US, S Great Plains # '' Amsonia elliptica'' (Thunb. ex Murray) Roem. & Schult. – Japanese bluestar – China, Japan, Korea # '' Amsonia fugatei'' S.P.McLaughlin – San Antonio bluestar – New Mexico # '' Amsonia grandiflora'' Alexander – Arizona bluestar – Arizona, Sonora, Durango # '' Amsonia hubrichtii' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Greece
The wildlife of Greece includes the diverse flora and fauna of Greece, a country in southern Europe. The country is mostly mountainous with a very long, convoluted coastline, consisting of peninsulas and many islands. The climate ranges from Mediterranean through temperate to alpine, and the habitats include mountains, hills, forests, rivers, lakes, coasts and cultivated land. Geography Greece is a country in the Balkan Peninsula of southern European, and lies to the south of Albania, North Macedonia and Bulgaria, and west of Turkey. It has a long coastline with the Mediterranean Sea and the Aegean Sea, and includes the island of Crete and many smaller islands. Mainland Greece covers about 80% of the total territory and is largely mountainous. The largest mountain group is the Pindus Range which forms the spine of the Greek mainland, with the highest peak rising to above sea level. The country's tallest mountain, Mount Olympus is further east, and rises to above sea level. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Turkey
about 9300 species of vascular plant were known to grow in Turkey. By comparison, Europe as a whole contains only about 24% more species (about 11500), despite having thirteen times the area. The most important reasons for the high plant biodiversity are believed to be the relatively high proportion of endemics, together with the high variety of soils and climate of Turkey. Endemism A third of Turkish plant species are endemic to Turkey: one reason there are so many is because the surface of Anatolia is both mountainous and quite fragmented. In fact, the Anatolian mountains resemble archipelagos like the famous Galapagos Islands. Since Darwin we know that geographic isolation between islands or separated mountains is an important means of speciation, leading to high spatial diversity. For Anatolia this assumption is confirmed by concentrations of endemism on highly isolated and relatively old massifs such as Uludağ and Ilgaz Dağ, whereas very young volcanic cones such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amsonia
''Amsonia'' is a genus of flowering plants in the dogbane family, Apocynaceae, first described as a genus in 1788. It is native primarily to North America with one species in East Asia and another in the eastern Mediterranean. It was named in honor of the American physician John Amson. Members of the genus are commonly known as bluestars. ;Species # '' Amsonia ciliata'' Walter – fringed bluestar – SE US, S Great Plains # ''Amsonia elliptica'' (Thunb. ex Murray) Roem. & Schult. – Japanese bluestar – China, Japan, Korea # ''Amsonia fugatei'' S.P.McLaughlin – San Antonio bluestar – New Mexico # ''Amsonia grandiflora'' Alexander – Arizona bluestar – Arizona, Sonora, Durango # '' Amsonia hubrichtii'' Woodson – Hubricht's bluestar – Arkansas, Oklahoma # ''Amsonia illustris'' Woodson – Ozark bluestar – Mississippi Valley, also Nevada # ''Amsonia jonesii'' Woodson – Jones' bluestar – Arizona, New Mexico, Utah, Colorado # '' Amsonia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Plate, North American Tectonic Plate, Greenland is included as a part of North America geographically. North America covers an area of about , about 16.5% of Earth's land area and about 4.8% of its total surface. North America is the third-largest continent by area, following Asia and Africa, and the list of continents and continental subregions by population, fourth by population after Asia, Africa, and Europe. In 2013, its population was estimated at nearly 579 million people in List of sovereign states and dependent territories in North America, 23 independent states, or about 7.5% of the world's population. In Americas (terminology)#Human ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Asia
East Asia is the eastern region of Asia, which is defined in both geographical and ethno-cultural terms. The modern states of East Asia include China, Japan, Mongolia, North Korea, South Korea, and Taiwan. China, North Korea, South Korea and Taiwan are all unrecognised by at least one other East Asian state due to severe ongoing political tensions in the region, specifically the division of Korea and the political status of Taiwan. Hong Kong and Macau, two small coastal quasi-dependent territories located in the south of China, are officially highly autonomous but are under Chinese sovereignty. Japan, Taiwan, South Korea, Mainland China, Hong Kong, and Macau are among the world's largest and most prosperous economies. East Asia borders Siberia and the Russian Far East to the north, Southeast Asia to the south, South Asia to the southwest, and Central Asia to the west. To the east is the Pacific Ocean and to the southeast is Micronesia (a Pacific Ocean island group, classifi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antimicrobial
An antimicrobial is an agent that kills microorganisms or stops their growth. Antimicrobial medicines can be grouped according to the microorganisms they act primarily against. For example, antibiotics are used against bacteria, and antifungals are used against fungi. They can also be classified according to their function. Agents that kill microbes are microbicides, while those that merely inhibit their growth are called bacteriostatic agents. The use of antimicrobial medicines to treat infection is known as antimicrobial chemotherapy, while the use of antimicrobial medicines to prevent infection is known as antimicrobial prophylaxis. The main classes of antimicrobial agents are disinfectants (non-selective agents, such as bleach), which kill a wide range of microbes on non-living surfaces to prevent the spread of illness, antiseptics (which are applied to living tissue and help reduce infection during surgery), and antibiotics (which destroy microorganisms within the body). The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN
The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partnerships. The organization is best known to the wider ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glycoalkaloid
Glycoalkaloids are a family of chemical compounds derived from alkaloids to which sugar groups are appended. Several are potentially toxic, most notably the poisons commonly found in the plant species ''Solanum dulcamara'' (bittersweet nightshade) and other plants in the genus ''Solanum'', including potato. A prototypical glycoalkaloid is solanine (composed of the sugar solanose and the alkaloid solanidine), which is found in the potato. The alkaloidal portion of the glycoalkaloid is also generically referred to as an aglycone. The intact glycoalkaloid is poorly absorbed from the human gastrointestinal tract, gastrointestinal tract but causes gastrointestinal irritation. The aglycone is absorbed and is believed to be responsible for observed nervous system signs. Glycoalkaloids are typically bitter (taste), bitter tasting, and produce a burning irritation in the back of the mouth and side of the tongue. The Aymara people of Bolivia use taste to detect the levels of glycoalkaloids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glycoside
In chemistry, a glycoside is a molecule in which a sugar is bound to another functional group via a glycosidic bond. Glycosides play numerous important roles in living organisms. Many plants store chemicals in the form of inactive glycosides. These can be activated by enzyme hydrolysis, which causes the sugar part to be broken off, making the chemical available for use. Many such plant glycosides are used as medications. Several species of ''Heliconius'' butterfly are capable of incorporating these plant compounds as a form of chemical defense against predators. In animals and humans, poisons are often bound to sugar molecules as part of their elimination from the body. In formal terms, a glycoside is any molecule in which a sugar group is bonded through its anomeric carbon to another group via a glycosidic bond. Glycosides can be linked by an O- (an ''O-glycoside''), N- (a ''glycosylamine''), S-(a ''thioglycoside''), or C- (a '' C-glycoside'') glycosidic bond. According to th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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