|
Environment Of Argentina
The Environment of Argentina is characterised by high biodiversity. Biodiversity Subtropical plants dominate the Gran Chaco in the north, with the ''Dalbergia'' genus of trees well represented by Brazilian rosewood and the quebracho tree; also predominant the wacho white and black algarrobo trees ('' Prosopis alba'' and ''Prosopis nigra''). Savannah-like areas exist in the drier regions nearer the Andes. Aquatic plants thrive in the wetlands of Argentina. In central Argentina the ''humid pampas'' are a true tallgrass prairie ecosystem. The original pampa had virtually no trees; some imported species like the American sycamore or eucalyptus are present along roads or in towns and country estates (''estancias''). The only tree-like plant native to the pampa is the evergreen Ombú. The surface soils of the pampa are a deep black color, primarily mollisols, known commonly as ''humus''. This makes the region one of the most agriculturally productive on Earth; however, this is also res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argentina
Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world. It shares the bulk of the Southern Cone with Chile to the west, and is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions, but exist under a federal system. Argentina claims sovereignty over the Falkland Islands, South Georgia and the South Sandwich Islands, and a part of Antarctica. The earliest recorded human prese ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinophyta
Conifers are a group of cone-bearing seed plants, a subset of gymnosperms. Scientifically, they make up the division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single extant class, Pinopsida. All extant conifers are perennial woody plants with secondary growth. The great majority are trees, though a few are shrubs. Examples include cedars, Douglas-firs, cypresses, firs, junipers, kauri, larches, pines, hemlocks, redwoods, spruces, and yews.Campbell, Reece, "Phylum Coniferophyta". Biology. 7th. 2005. Print. P. 595 As of 1998, the division Pinophyta was estimated to contain eight families, 68 genera, and 629 living species. Although the total number of species is relatively small, conifers are ecologically important. They are the dominant plants over large areas of land, most notably the taiga of the Northern Hemisphere, but also in similar cool climates in mountains further south. Boreal conifers have many wintertime adaptations. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spruce
A spruce is a tree of the genus ''Picea'' (), a genus of about 35 species of coniferous evergreen trees in the family Pinaceae, found in the northern temperate and boreal (taiga) regions of the Earth. ''Picea'' is the sole genus in the subfamily Piceoideae. Spruces are large trees, from about 20 to 60 m (about 60–200 ft) tall when mature, and have whorled branches and conical form. They can be distinguished from other members of the pine family by their needles (leaves), which are four-sided and attached singly to small persistent peg-like structures (pulvini or sterigmata) on the branches, and by their cones (without any protruding bracts), which hang downwards after they are pollinated. The needles are shed when 4–10 years old, leaving the branches rough with the retained pegs. In other similar genera, the branches are fairly smooth. Spruce are used as food plants by the larvae of some Lepidoptera (moth and butterfly) species, such as the eastern spruce budwo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nothofagus Antarctica
''Nothofagus antarctica'' (''Antarctic beech''; in Spanish ''Ñire'' or ''Ñirre'') is a deciduous tree or shrub native to southern Chile and Argentina from about 36°S to Tierra del Fuego (56° S), where it grows mainly in the diminishing temperate rainforest. Its occurrence on Hoste Island has previously earned it the distinction of being the southernmost tree on earth; however, in 2019 it was established that '' N. betuloides'' was found further south, on Hornos Island. ''N. antarctica'' is present on Hornos as well, but the southernmost individual is slightly further north (17 m) of the southernmost ''N. betuloides''. Description ''Nothofagus antarctica'' typically grows 5–25 m (12–80 ft) tall and has a slender trunk with scaly bark. The leaves are simple and alternate, growing 2–4.5 cm long, and often viscid, with a sweetly scented wax. The leaf color is medium green, turning yellow to orange in the fall. The leaves are broadly ovate to triangular, crinkly, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nothofagus Pumilio
''Nothofagus pumilio'', the lenga beech (from the Mapuche language), is a deciduous tree or shrub in the Nothofagaceae family that is native to the southern Andes range, in the temperate forests of Chile and Argentina to Tierra del Fuego, from 35° to 56° South latitude. This tree is in the same genus as the coihue. It regenerates easily after fires. The wood is of good quality, moderate durability, and is easy to work with. It is used in furniture, shingles and construction and sometimes as a substitute for American black cherry in the manufacturing of cabinets. Description In southern Patagonia it grows to a height of up to 30 m (100 ft), and attains a trunk diameter of 1.5 m (5 ft). In more northern regions it grows only at heights above 1000 meters (3300 ft) in the form of a shrub. The leaves are dark green, elliptic toothed and 2–4 cm long, with irregularly lobed margins, and turn to yellow and reddish tones in autumn. The fruit is a small nu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nothofagus Dombeyi
''Nothofagus dombeyi'', Dombey's beech, coigue, coihue or coigüe (from Mapuche language, Mapudungun ''koywe'') is a tree species native to southern Chile and the Andean parts of Argentine Patagonia. It is a fast-growing species that can live in a wide range of climatic conditions, and forms dense forests. It is cultivated for its timber, and as an ornamental subject. Description It can become a large tree, up to high and in diameter. One tree, felled by a storm in 1954, reportedly measured in diameter at the height of a man's chest and a total volume, including the branches, of 87 cubic metre, m³. The coihue usually has elegant branches which are flattened horizontally. The leaves are evergreen, small (25–40 mm long and 10–16 mm wide), thick, coriaceous (leathery) and lustrous, dark green, with toothed borders and an acute apex; they have a very small, rounded and rhomb-shaped petiole (botany), petiole. The tree is hermaphrodite, hermaphroditic; male and fema ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nothofagus
''Nothofagus'', also known as the southern beeches, is a genus of 43 species of trees and shrubs native to the Southern Hemisphere in southern South America (Chile, Argentina) and Australasia (east and southeast Australia, New Zealand, New Guinea, and New Caledonia). The species are ecological dominants in many temperate forests in these regions. Some species are reportedly naturalised in Germany and Great Britain. The genus has a rich fossil record of leaves, cupules, and pollen, with fossils extending into the late Cretaceous period and occurring in Australia, New Zealand, Antarctica, and South America. Description The leaves are toothed or entire, evergreen or deciduous. The fruit is a small, flattened or triangular nut, borne in cupules containing one to seven nuts. Reproduction Many individual trees are extremely old, and at one time, some populations were thought to be unable to reproduce in present-day conditions where they were growing, except by suckering ( clonal rep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araucaria Araucana
''Araucaria araucana'' (commonly called the monkey puzzle tree, monkey tail tree, piñonero, pewen or Chilean pine) is an evergreen tree growing to a trunk diameter of 1–1.5 m (3–5 ft) and a height of 30–40 m (100–130 ft). It is native to central and southern Chile and western Argentina. ''Araucaria araucana'' is the hardiest species in the conifer genus '' Araucaria''. Because of the prevalence of similar species in ancient prehistory, it is sometimes called a living fossil. It is also the national tree of Chile. Its conservation status was changed to Endangered by the IUCN in 2013 due to the dwindling population caused by logging, forest fires, and grazing. Description The leaves are thick, tough, and scale-like, triangular, long, broad at the base, and with sharp edges and tips. According to Lusk, the leaves have an average lifespan of 24 years and so cover most of the tree except for the older branches. It is usually dioecious, with the male a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saxegothaea
''Saxegothaea'' is a genus comprising a single species, ''Saxegothaea conspicua''. It is a conifer in the podocarp family Podocarpaceae, native to southern South America. It grows in Chile and Argentina from 35° to 46° South latitude; in its northernmost natural distribution it grows between 800 and 1000 (2600–3300 ft) m above sea level and in the south it lives at sea level. The species is most often known by its genus name, or sometimes as female maniu (a translation of its name in Spanish) and Prince Albert's yew; in South America it is known as mañío hembra or maniú hembra. The genus name of ''Saxegothaea'' is in honour of Franz August Carl Albert Emanuel von Sachsen-Coburg und Gotha (1819–1861), who was the consort of Queen Victoria from their marriage on 10 February 1840 until his death in 1861. Lindley wrote "This remarkable plant, to which His Royal Highness Prince Albert has been pleased to permit one of his titles to be given, and which will probably rank a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prumnopitys Andina
''Prumnopitys andina'', the lleuque or Chilean plum yew,British Forestry Research on ''P. andina'' is an native to south-central and a few areas in adjacent parts of westernmost from 3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Podocarpus Nubigenus
''Podocarpus nubigenus'' (also known as ''P. nubigena'') is a species of podocarp, endemic to the Valdivian temperate rain forests of southern Chile and adjacent southwestern Argentina. It is the southernmost podocarp in the world. It grows from 38°S to Ultima Esperanza (53°S), in wet and swampy soils. It can settle clear grounds, with a faster growth than the other Chilean Podocarpaceae. It is a medium to large tree, growing to around , exceptionally to . The bark peels off in papery flakes, with a purplish to golden brown hue. The sharp, green, needle-like leaves are stiff and leathery, 2 cm long. The cones are highly modified with two to four fused, fleshy, berry-like, juicy scales, bright red when mature, bearing one (rarely two) rounded seeds at the apex of the scales. In a classic example species-pair of the Antarctic flora, it is very closely related to ''Podocarpus totara'' from New Zealand, to the extent that if planted together, they are very difficult to dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pilgerodendron
''Pilgerodendron'' is a genus of conifer belonging to the cypress family Cupressaceae. It has only one species, ''Pilgerodendron uviferum'', which is endemic to the Valdivian temperate rain forests and Magellanic subpolar forests of southern Chile and southwestern Argentina. It grows from 40 to 55°S in Tierra del Fuego, where it is the southernmost conifer in the world. It is a member of subfamily Callitroideae, a group of distinct Southern Hemisphere genera associated with the Antarctic flora.Farjon, A. (2005). ''Monograph of Cupressaceae and Sciadopitys''. Royal Botanic Gardens, Kew. Flora Chilena''Pilgerodendron uviferum''/ref> ''Pilgerodendron'' is very closely related to the New Zealand and New Caledonian genus ''Libocedrus'', and many botanists treat ''P. uviferum'' within this genus, as ''Libocedrus uvifera'' (D.Don) Pilg.Eckenwalder, J. E. (1976). Re-evaluation of Cupressaceae and Taxodiaceae: a proposed merger. ''Madroño'' 23 (5): 237-256. It is also a taxonomical syno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
