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Phyla Canescens
''Phyla canescens'' is a species of perennial herbaceous plant in the family Verbenaceae, native to South America. It has been introduced to Australia as an ornamental plant and low-maintenance lawn, but has become naturalised and is considered a serious environmental weed. It is known by several common names including carpet weed, Condamine couch, Condamine curse, fog fruit, frog fruit, hairy fogfruit, lippia, mat grass and no-mow grass. Description ''Phyla canescens'' is a much-branched, low, creeping perennial plant with wiry stems up to a metre long. The stems are often pinkish or brownish, producing adventitious roots at the joints and forming a tangled, dense mat. Older stems are grey and woody. The small, greyish-green and slightly fleshy leaves have short stalks and are in opposite pairs; the margins are either entire or have a few blunt teeth. The inflorescence is a dense, globular cluster of flowers, borne on a stalk in the axil of the leaves. The individual flowers have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Sigismund Kunth
Carl Sigismund Kunth (18 June 1788 – 22 March 1850), also Karl Sigismund Kunth or anglicized as Charles Sigismund Kunth, was a German botanist. He is known for being one of the first to study and categorise plants from the Americas, American continents, publishing ''Nova genera et species plantarum quas in peregrinatione ad plagam aequinoctialem orbis novi collegerunt Bonpland et Humboldt'' (7 vols., Paris, 1815–1825). Born in Leipzig, Kunth became a merchant's clerk in Berlin in 1806. After meeting Alexander von Humboldt, who helped him attend lectures at the University of Berlin, Kunth became interested in botany. Kunth worked as Humboldt's assistant in Paris from 1813 to 1819. He classified plants that had been collected by Humboldt and Aimé Bonpland during their journey through the Americas. When Kunth returned to Berlin in 1820, he became Professor of Botany at the University of Berlin, as well as the Vice President of the Berlin botanical garden. In 1829, he was ele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eleocharis Plana
''Eleocharis plana'', the flat spike-sedge, is a flat perennial sedge (in the family Cyperaceae) with creeping rhizomes, which grows up to 80 cm high in moist situations. It is widespread in inland New South Wales, and is also found in Queensland and in South Australia. The spikelets are narrow and from 10 to 20 mm long (sometimes 40 mm). There are three stamens. The anthers are 1.5–3.1 mm long and the style is trifid. The nut is obovoid, and from 1.2 to 1.8 mm long and about 1 mm in diameter. It is shining and a bright yellow to brown, with the base of the style base being about half as long and wide as the nut. It flowers from spring to summer. ''Eleocharis plana'' was first described by Stanley Thatcher Blake Stanley Thatcher Blake (1910 – 24 February 1973) was an Australian botanist who served as president of the Royal Society of Queensland and who was associated with the Queensland Herbarium beginning in 1945 until his death. Background Prior to ... in 1938. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of South America
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms '' gut flora'' or '' skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyla (genus)
''Phyla'' is a genus of eustarid plants in the verbena family, Verbenaceae. The name is derived from the Greek word φυλή (''phyle''), meaning "tribe", and most likely refers to the tightly clustered flowers or the spreading, mat-like growth. Members of the genus are known generally as fogfruit or frogfruit. Species once classified in the genus ''Lippia'' may be known by the common name lippia. Some species, e.g. Aztec Sweet Herb ('' P. dulcis''), are used in cooking. Selected species * ''Phyla canescens'' (Kunth) Greene – hairy frogfruit/fogfruit * '' Phyla chinensis'' Lour. * '' Phyla cuneifolia'' (Torr.) Greene – wedgeleaf frogfruit/fogfruit, wedgeleaf * ''Phyla dulcis'' ( Trevir.) Moldenke, – Aztec sweet herb, honeyherb, ''hierba dulce'' (Spanish), ''tzopelic-xihuitl'' (Nahuatl) * ''Phyla fruticosa'' (Mill.) Kennedy – diamondleaf frogfruit/fogfruit * ''Phyla × intermedia'' Moldenke – intermediate frogfruit/fogfruit * ''Phyla lanceolata ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palatability
Palatability (or palatableness) is the hedonic reward (i.e., pleasure) provided by foods or fluids that are agreeable to the "palate", which often varies relative to the homeostatic satisfaction of nutritional, water, or energy needs. The palatability of a food or fluid, unlike its flavor or taste, varies with the state of an individual: it is lower after consumption and higher when deprived. It has increasingly been appreciated that this can create a hunger that is independent of homeostatic needs.Lowe MR, Butryn ML. (2007). Hedonic hunger: a new dimension of appetite? Physiol Behav. Jul 24;91(4):432-9. Brain mechanism The palatability of a substance is determined by opioid receptor-related processes in the nucleus accumbens and ventral pallidum.Wassum KM, Ostlund SB, Maidment NT, Balleine BW. (2009). Distinct opioid circuits determine the palatability and the desirability of rewarding events. Proc Natl Acad Sci U S A. 106:12512–12517 The opioid processes involve mu opioi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dominance (ecology)
Ecological dominance is the degree to which one or several species have a major influence controlling the other species in their ecological community (because of their large size, population, productivity, or related factors) or make up more of the biomass. Most ecological communities are defined by their dominant species. *In many examples of wet woodland in western Europe, the dominant tree is alder ('' Alnus glutinosa''). *In temperate bogs, the dominant vegetation is usually species of ''Sphagnum'' moss. *Tidal swamps in the tropics are usually dominated by species of mangrove (''Rhizophoraceae'') *Some sea floor communities are dominated by brittle stars. *Exposed rocky shorelines are dominated by sessile organisms such as barnacles and limpets. See also * National Vegetation Classification, a system for classifying British British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honey Bee
A honey bee (also spelled honeybee) is a eusocial flying insect within the genus ''Apis'' of the bee clade, all native to Afro-Eurasia. After bees spread naturally throughout Africa and Eurasia, humans became responsible for the current cosmopolitan distribution of honey bees, introducing multiple subspecies into South America (early 16th century), North America (early 17th century), and Australia (early 19th century). Honey bees are known for their construction of perennial colonial nests from wax, the large size of their colonies, and surplus production and storage of honey, distinguishing their hives as a prized foraging target of many animals, including honey badgers, bears and human hunter-gatherers. Only eight surviving species of honey bee are recognized, with a total of 43 subspecies, though historically 7 to 11 species are recognized. Honey bees represent only a small fraction of the roughly 20,000 known species of bees. The best known honey bee is the weste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paspalum Distichum
''Paspalum distichum'' is a species of grass. Common names include knotgrass, water finger-grass, couch paspalum, eternity grass, gingergrass, and Thompson grass. Its native range is obscure because it has long been present on most continents, and in most areas it is certainly an introduced species. Its native range probably includes parts of the tropical Americas. This is a perennial grass forming clumps and spreading via rhizomes and stolons. It grows decumbent or erect to a maximum height near 60 centimeters. The inflorescence is usually divided into two branches lined with spikelets. ''Paspalum distichum'' is a food source for several avian species, including the long-tailed widowbird The long-tailed widowbird (''Euplectes progne''), also known as the "sakabula", is a species of bird in the family Ploceidae.Mackworth-Praed, C.W., and C.H. Grant. (1960). ''Birds of Eastern and North Eastern Africa''. Longmans, Green and Co LTD. .... References External links Jepson Manu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benjamin Daniel Greene
Benjamin Daniel Greene (born 29 December 1793, Demerara, British Guyana – 14 October 1862, Boston) was an American lawyer, physician, naturalist, and botanist. Biography Benjamin Daniel Greene, a son of Gardiner Greene, grew up in Boston, Massachusetts, where he received his secondary education at Boston Latin School. He graduated from Harvard College in 1812 and then studied at Litchfield Law School. In September 1815 he was admitted to the bar in Suffolk County, Massachusetts and then practiced law in Boston. However, he soon gave up his legal practice to study medicine in Edinburgh and Paris. He acquired his higher medical doctorate in Edinburgh in 1821, but subsequently spent most of his time studying natural science, especially botany. He put together an extensive herbarium and a valuable botanical library. His botanical study dealt with seed plants. Greene was one of the founders of the Boston Society of Natural History in 1830 and was its first president, holding that offi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Murray–Darling Basin
The Murray–Darling basin is a large geographical area in the interior of southeastern Australia, encompassing the drainage basin of the tributaries of the Murray River, Australia's longest river, and the Darling River, a right tributary of the Murray and Australia's third-longest river. The basin, which includes six of Australia's seven longest rivers and covers around one-seventh of the Australian landmass, is one of the country's most significant agricultural areas providing one-third of Australia's food supply. Located west of the Great Dividing Range, it drains southwestly into the Great Australian Bight and spans most of the states of New South Wales and Victoria, the Australian Capital Territory, and parts of the states of Queensland (the lower third) and South Australia (the southeastern corner). The basin is in length, with the Murray River being long. Most of the basin is flat, low-lying and far inland, and receives little direct rainfall. The many rivers it c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pampas
The Pampas (from the qu, pampa, meaning "plain") are fertile South American low grasslands that cover more than and include the Argentine provinces of Buenos Aires, La Pampa, Santa Fe, Entre Ríos, and Córdoba; all of Uruguay; and Brazil's southernmost state, Rio Grande do Sul. The vast plains are a natural region, interrupted only by the low Ventana and Tandil hills, near Bahía Blanca and Tandil (Argentina), with a height of and , respectively. The climate is temperate, with precipitation of that is more or less evenly distributed throughout the year, making the soils appropriate for agriculture. The area is also one of the distinct physiography provinces of the larger Paraná–Paraguay plain division. Topography This region has generally low elevations, whose highest levels do not exceed 600 metres (1,970 feet) in altitude. The coastal areas and most of the Buenos Aires Province are predominantly plain (with some wetlands) and the interior areas (mainly in the sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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