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Phyla Canescens
''Phyla canescens'' is a species of Perennial plant, 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 indivi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Sigismund Kunth
Carl Sigismund Kunth (18 June 1788 – 22 March 1850) was a German botanist. He was also known as Karl Sigismund Kunth or anglicized as Charles Sigismund Kunth. He was one of the early systematic botanists who focused on studying the plants of the Americas. Kunth's notable contributions include the publication of ''Nova genera et species plantarum quas in peregrinatione ad plagam aequinoctialem orbis novi collegerunt Bonpland et Humboldt''. This work spanned seven volumes and was published between 1815 and 1825. Early life Kunth was born in Leipzig, Saxony, in modern-day Germany. His uncle, Gottlob Johann Christian Kunth, was a politician and educator who tutored both the explorer Alexander von Humboldt and his older brother, the diplomat Wilhelm von Humboldt, as children. Growing up, Kunth's father didn't have enough money for him to continue studying at the Leipzig Rathsschule. His uncle paid for him to move to Berlin, then a part of Prussia, and take a position at the Pru ... [...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 Southern America
Flora (: floras or florae) is all the plant life present in a particular region or time, generally the naturally occurring ( indigenous) native plants. The corresponding term for animals is '' fauna'', and for fungi, it is '' funga''. Sometimes bacteria and fungi are also referred to as flora as in the terms '' gut flora'' or '' skin flora'' for purposes of specificity. 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 communi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phyla (genus)
''Phyla'' is a genus of Asterids, eustarid plants in the verbena family (biology), family, Verbenaceae. The name is derived from the Ancient Greek, 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 (''Phyla dulcis, P. dulcis''), are used in cooking. Selected species * ''Phyla canescens'' (Carl Sigismund Kunth, Kunth) Edward Lee Greene, Greene – hairy frogfruit/fogfruit * ''Phyla chinensis'' João de Loureiro, Lour. * ''Phyla cuneifolia'' (Torr.) Greene – wedgeleaf frogfruit/fogfruit, wedgeleaf * ''Phyla dulcis'' (Ludolph Christian Treviranus, Trevir.) Harold Norman Moldenke, Moldenke, – Aztec sweet herb, honeyherb, ''hierba dulce'' (Spanish (language), Spanish), ''tzopelic-xihuitl' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palatability
Palatability (or palatableness) is the hedonic reward (which is pleasure of taste in this case) provided by foods or drinks that are agreeable to the "palate", which often varies relative to the homeostatic satisfaction of nutritional and/or water needs. The palatability of a dish or beverage, 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. Brain mechanism The palatability of a substance is determined by opioid receptor-related processes in the nucleus accumbens and ventral pallidum. The opioid processes involve mu opioid receptors and are present in the rostromedial shell part of the nucleus accumbens on its spiny neurons. This area has been called the "opioid eating site". The rewardfulness of consumption associated with palatability is dissociable from desire or incentive value which is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plains Viscacha
The plains viscacha or plains vizcacha (''Lagostomus maximus'') is a species of viscacha, a rodent in the family Chinchillidae. It is the only living species within the genus '' Lagostomus''. It is found in Argentina, Bolivia, and Paraguay. The plains viscacha is the largest species in its family. They construct elaborate burrows that house successive colonies for decades. The plains viscacha should not be confused with the plains viscacha rat. Appearance left, 200px The plains viscacha is a large rodent, weighing up to 9 kg. It has an average head and body length over 500 mm, with the tail usually a little less than 200 mm long. The dorsal pelage ranges from gray to brown, depending upon soil color, and the belly is whitish. Its head is bulky, and the face is black and white; males have distinctive black mustaches and stiff whiskers. Their fore feet have four toes, and the hind feet have three toes. Soft dense fur covers its body, from the tips of its ears to t ... [...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 Community (ecology), ecological community (because of their large size, population, productivity, or related factors) or make up more of the Biomass (ecology), biomass. Both the composition and abundance of species within an ecosystem can be affected by the dominant species present. In most of the world's ecosystems, biologists have repeatedly observed a Rank abundance curve, rank-abundance curve in which ecosystems comprise a handful of incredibly abundant species, but more numerous, rarer species that are few in number. Danish botanist Christen C. Raunkiær described this phenomenon as his "Occupancy frequency distribution, law of frequency" in 1918, in which he recognized that in communities with a single species accounting for most of the biomass, species diversity was often lower. Understandably, biologists expect to see more profound effects fro ... [...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 mainland 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 8 surviving species of honey bees 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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paspalum Distichum
''Paspalum distichum'' is a species of Poaceae, 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. References External links Jepson Manual TreatmentGrass Manual TreatmentPhoto gallery Paspalum, distichum Grasses of North America Grasses of South America Plants described in 1759 Taxa named by Carl Linnaeus Invasive plant species in Lebanon {{Panicoideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benjamin Daniel Greene
Benjamin Daniel Greene (1793 – 1862) was an American lawyer, physician, naturalist, and botanist. Biography Benjamin Daniel Greene, a son of Gardiner Greene, was born 29 December 1793, in the colony of Demerara, which was part of Dutch Giana at the time (it would become part of British Guiana in the 19th-century). He 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 fo ... [...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 southwest 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pampas
The Pampas (; from Quechua 'plain'), also known as the Pampas 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. This ecoregion has been changed by humans, especially since the release of animals like cattle, pigs, and especially sheep onto these plains. 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. It is considered that the limit of the Pampas plain is to the north with the Atlantic Forest and the G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
