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Lysiosepalum Abollatum
''Lysiosepalum abollatum'', also known as woolly lysiosepalum, is a species of flowering plant in the mallow family that is endemic to Australia. Description The species grows as a dense, erect shrub up to 1.5 m in height. The small, narrow leaves are hairy on both sides. The inflorescences are 40–90 mm long, with up to eight flowers which appear from August to September. The flowers have dark pink petals surrounded by a mauve to pink calyx. Distribution and habitat The plants have a very restricted natural range; they are found only in the Wongan Hills area of the Avon Wheatbelt IBRA bioregion, some 180 km north-east of Perth, in south-west Western Australia. They grow in open mallee-heath on orange-brown, sandy clay, lateritic soils on the lower slopes and at the bases of hills. Associated vegetation includes '' Eucalyptus ebbanoensis'', ''Acacia pharangites'' and '' A. congesta'' over an understorey of ''Halgania'', ''Allocasuarina'', ''Leptospermum'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carolyn F
Carolyn is a female given name, a variant of Caroline. Other spellings include Karolyn, Carolyne, Carolynn or Carolynne. Caroline itself is one of the feminine forms of Charles. List of Notable People * Carolyn Bennett (born 1950), Canadian politician * Carolyn Bertozzi (born 1966), American chemist and Nobel laureate * Carolyn Bessette-Kennedy (1966–1999), wife of John F. Kennedy, Jr. * Carolyn Brown (choreographer) (born 1927), American dancer, choreographer, and writer * Carolyn Brown (newsreader), English newsreader * Carolyn Cassady (1923–2013), American writer and wife of Neal Cassady * C. J. Cherryh (Carolyn Janice Cherryh; born 1942), American science fiction and fantasy writer * Carolyn Chiechi (born 1943), judge of the United States Tax Court * Carolyn Cooper (born 1959), Jamaican author and literary scholar * Carolyn Davidson, several people * Carolyn Eaton, murder victim *Carolyn Fe, Filipina singer and actress * Carolyn Forché (born 1950), American poet, edi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clay
Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4). Clays develop plasticity when wet, due to a molecular film of water surrounding the clay particles, but become hard, brittle and non–plastic upon drying or firing. Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impurities, such as a reddish or brownish colour from small amounts of iron oxide. Clay is the oldest known ceramic material. Prehistoric humans discovered the useful properties of clay and used it for making pottery. Some of the earliest pottery shards have been dated to around 14,000 BC, and clay tablets were the first known writing medium. Clay is used in many modern industrial processes, such as paper making, cement production, and chemical filtering. Between one-half and two-thirds of the world's population live or work in buildings made with clay, ofte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grazing (behaviour)
Grazing is a method of feeding in which a herbivore feeds on low-growing plants such as grasses or other multicellular organisms, such as algae. Many species of animals can be said to be grazers, from large animals such as hippopotamuses to small aquatic snails. Grazing behaviour is a type of feeding strategy within the ecology of a species. Specific grazing strategies include graminivory (eating grasses); coprophagy (producing part-digested pellets which are reingested); pseudoruminant (having a multi-chambered stomach but not chewing the cud); and grazing on plants other than grass, such as on marine algae. Grazing's ecological effects can include redistributing nutrients, keeping grasslands open or favouring a particular species over another. Ecology Many small selective herbivores follow larger grazers which skim off the highest, tough growth of grasses, exposing tender shoots. For terrestrial animals, grazing is normally distinguished from browsing in that grazing is eat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soil Erosion
Soil erosion is the denudation or wearing away of the upper layer of soil. It is a form of soil degradation. This natural process is caused by the dynamic activity of erosive agents, that is, water, ice (glaciers), snow, air (wind), plants, and animals (including humans). In accordance with these agents, erosion is sometimes divided into water erosion, glacial erosion, snow erosion, wind (aeolean) erosion, zoogenic erosion and anthropogenic erosion such as tillage erosion. Soil erosion may be a slow process that continues relatively unnoticed, or it may occur at an alarming rate causing a serious loss of topsoil. The loss of soil from farmland may be reflected in reduced crop production potential, lower surface water quality and damaged drainage networks. Soil erosion could also cause sinkholes. Human activities have increased by 10–50 times the rate at which erosion is occurring world-wide. Excessive (or accelerated) erosion causes both "on-site" and "off-site" problem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Clearing In Australia
Land clearing in Australia describes the removal of native vegetation and deforestation in Australia. Land clearing involves the removal of native vegetation and habitats, including the bulldozing of native bushlands, forests, savannah, woodlands and native grasslands and the draining of natural wetlands for replacement with agriculture, urban and other land uses. , of the vegetation which existed in Australia at the time of European settlement, approximately 87% remains. One estimate places the rate of rainforest of all types has been reduced by three quarters since the time of European settlement from eight million hectares to two million. Land clearing threatens native species including ground orchids and eucalyptus. Land clearing is an important environmental issue in Australia. Bans on land clearing have been placed by state governments. This policy largely permitted Australia to abide by its commitments to the Kyoto Protocol. Causes The underlying causes of land-c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environment Protection And Biodiversity Conservation Act 1999
The ''Environment Protection and Biodiversity Conservation Act 1999'' (Cth) is an Act of the Parliament of Australia that provides a framework for protection of the Australian environment, including its biodiversity and its natural and culturally significant places. Enacted on 17 July 2000, it established a range of processes to help protect and promote the recovery of threatened species and ecological communities, and preserve significant places from decline. The Act is administered by the Department of Agriculture, Water and the Environment. Lists of threatened species are drawn up under the Act, and these lists, the primary reference to threatened species in Australia, are available online through the Species Profile and Threats Database (SPRAT). As an Act of the Australian Parliament, it relies for its constitutional validity upon the legislative powers of the Parliament granted by the Australian Constitution, and key provisions of the Act are largely based on a num ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hibbertia
''Hibbertia'', commonly known as guinea flowers, is a genus of flowering plants in the family Dilleniaceae. They are usually shrubs with simple leaves and usually yellow flowers with five sepals and five petals. There are about 400 species, most of which occur in Australia but a few species occur in New Guinea, New Caledonia, Fiji and Madagascar. Description Plants in the genus ''Hibbertia'' are usually shrubs, rarely climbers, and often form mats. Their leaves are usually arranged alternately along the stems, usually sessile, clustered on short side-branches, and have smooth, rarely toothed or lobed edges. The flowers are usually arranged singly in leaf axils or on the ends of stems and have five sepals, two "outer" sepals slightly overlapping the three "inner" ones. There are five yellow, rarely orange, petals and the stamens are usually arranged in three to five groups, sometimes on only one side of the carpels. There are between two and five carpels, usually free from each ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptospermum
''Leptospermum'' is a genus of shrubs and small trees in the myrtle family Myrtaceae commonly known as tea trees, although this name is sometimes also used for some species of ''Melaleuca''. Most species are endemic to Australia, with the greatest diversity in the south of the continent, but some are native to other parts of the world, including New Zealand and Southeast Asia. Leptospermums all have five conspicuous petals and five groups of stamens which alternate with the petals. There is a single style in the centre of the flower and the fruit is a woody capsule. The first formal description of a leptospermum was published in 1776 by the German botanists Johann Reinhold Forster and his son Johann Georg Adam Forster, but an unambiguous definition of individual species in the genus was not achieved until 1979. Leptospermums grow in a wide range of habitats but are most commonly found in moist, low-nutrient soils. They have important uses in horticulture, in the production o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allocasuarina
''Allocasuarina'' is a genus of trees in the flowering plant family Casuarinaceae. They are endemic to Australia, occurring primarily in the south. Like the closely related genus '' Casuarina'', they are commonly called sheoaks or she-oaks. Wilson and Johnson distinguish the two very closely related genera, '' Casuarina'' and ''Allocasuarina'' on the basis of: *'' Casuarina'': the mature samaras being grey or yellow-brown, and dull; cone bracteoles thinly woody, prominent, extending well beyond cone body, with no dorsal protuberance; *''Allocasuarina'': the mature samaras being red-brown to black, and shiny; cone bracteoles thickly woody and convex, mostly extending only slightly beyond cone body, and usually with a separate angular, divided or spiny dorsal protuberance. Description They are trees or shrubs that are notable for their long, segmented branchlets that function as leaves. Formally termed cladodes, these branchlets somewhat resemble pine needles, although sheoak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halgania
''Halgania'' is a genus of small shrubs in the family Boraginaceae. The genus comprises about 20 species that are endemic to Australia. ''Halgania'' is named for Emmanuel Halgan, a vice-admiral in the French Navy. Features ''Halgania'' species are spreading to erect shrubs or subshrubs up to 1.2 m high. Leaves are simple, alternating along the stem and membranaceous or leathery. The leaf margin is entire or toothed to serrate and often revolute. Herbaceous stems and leaves can be glabrous but also covered with glandular hairs, simple or bifurcating (resembling cleats, "dolabriform") hairs. In some species, the surface is also covered with a viscose layer of exudates. The flowers have a calyx of five more or less connected sepals. The 5-parted corolla is blue to violet, rarely white and flat or widely cup-shaped, similar to '' Solanum''-flowers. The five stamens have short filaments and long yellow to yellow-violet anthers. They are connected via intertwining hairs to an anthe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acacia Congesta
''Acacia congesta'' is a shrub belonging to the genus ''Acacia'' and the subgenus ''Phyllodineae'' endemic to Western Australia. Description The spreading shrub typically grows to a height of . It has dark grey bark on the trunk and larger branches. The glabrous or hairy branchlets have spinose stipules and a grey to white coloured epidermis that becomes fissured as it gets older. The pungent, dark green phyllodes are variable with a length of and a width of and have a prominent midrib and obscure to pronounces lateral nerves. It blooms from August to September and produces yellow flowers. Taxonomy The species was first formally described by the botanist George Bentham in 1842 as part of William Jackson Hooker's work ''Notes on Mimoseae, with a synopsis of species'' as published in the ''London Journal of Botany''. It was reclassified as ''Racosperma congestum'' in 2003 by Leslie Pedley then transferred back to the genus ''Acacia'' in 2006. The only other synonym is ''Acac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
