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Acacia Trigonophylla
''Acacia trigonophylla'' is a shrub belonging to the genus ''Acacia''. It is native to Western Australia. Description The multi-branched pungent shrub is typically in height with an erect habit. The green branchlets are angled from the stem. The phyllodes are continuous with branchlets forming narrow triangular wings that are long and wide. It blooms between August and November producing yellow flowers. Taxonomy The species was first formally described by the botanist Carl Meissner in 1848 as part of Johann Georg Christian Lehmann's work ''Leguminosae. Plantae Preissianae''. It was briefly reclassified as ''Racosperma trigonophyllum'' in 2003 by Leslie Pedley before being reverted to the current name in 2006. The type specimen was collected by James Drummond in 1844 in the Swan River Colony. Plants with shorter phyllodes are often confused with ''Acacia incurva'' or ''Acacia daviesioides''. ''A. trigonophylla'' one of only a few ''Acacia'' species in which the aril face ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mid West (Western Australia)
The Mid West region is one of the nine regions of Western Australia. It is a sparsely populated region extending from the west coast of Western Australia, about north and south of its administrative centre of Geraldton, Western Australia, Geraldton and inland to east of Wiluna, Western Australia, Wiluna in the Gibson Desert. It has a total area of , and a permanent population of about 52,000 people, more than half of those in Geraldton. Earlier names The western portion of this region was known earlier as "The Murchison" based on the Murchison River (Western Australia), river of the same name, and the similarly named Goldfield. Economy The Mid West region has a diversified economy that varies with the geography and climate. Near the coast, annual rainfall of between allows intensive agriculture. Further inland, annual rainfall decreases to less than , and here the economy is dominated by mining of iron ore, gold, nickel and other mineral resources. Geraldton is an imp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acacias Of Western Australia
''Acacia'', commonly known as the wattles or acacias, is a large genus of shrubs and trees in the subfamily Mimosoideae of the pea family Fabaceae. Initially, it comprised a group of plant species native to Africa and Australasia. The genus name is New Latin, borrowed from the Greek (), a term used by Dioscorides for a preparation extracted from the leaves and fruit pods of ''Vachellia nilotica'', the original type of the genus. In his ''Pinax'' (1623), Gaspard Bauhin mentioned the Greek from Dioscorides as the origin of the Latin name. In the early 2000s it had become evident that the genus as it stood was not monophyletic and that several divergent lineages needed to be placed in separate genera. It turned out that one lineage comprising over 900 species mainly native to Australia, New Guinea, and Indonesia was not closely related to the much smaller group of African lineage that contained ''A. nilotica''—the type species. This meant that the Australasian lineage (by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Acacia Species
Several Cladistics, cladistic analyses have shown that the genus ''Acacia sensu lato, Acacia'' is not monophyletic. While the subg. ''Acacia'' and subg. ''Phyllodinae'' are monophyletic, subg. ''Aculeiferum'' is not. This subgenus consists of three clades. Therefore, the following list of ''Acacia'' species cannot be maintained as a single entity, and must either be split up, or broadened to include species previously not in the genus. This genus has been provisionally divided into 5 genus, genera, ''Acacia'', ''Vachellia'', ''Senegalia'', ''Acaciella'' and ''Mariosousa''. The proposed type species of ''Acacia'' is ''Acacia penninervis''. Which of these segregate genera is to retain the name ''Acacia'' has been controversial. The genus was previously typified with the African species ''Acacia scorpioides'' (L.) W.F.Wright, a synonym of ''Acacia nilotica'' (L.) Delile. Under the original typification, the name ''Acacia'' would stay with the group of species currently recognized ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laterite
Laterite is both a soil and a rock type rich in iron and aluminium and is commonly considered to have formed in hot and wet tropical areas. Nearly all laterites are of rusty-red coloration, because of high iron oxide content. They develop by intensive and prolonged weathering of the underlying parent rock, usually when there are conditions of high temperatures and heavy rainfall with alternate wet and dry periods. Tropical weathering (''laterization'') is a prolonged process of chemical weathering which produces a wide variety in the thickness, grade, chemistry and ore mineralogy of the resulting soils. The majority of the land area containing laterites is between the tropics of Cancer and Capricorn. Laterite has commonly been referred to as a soil type as well as being a rock type. This and further variation in the modes of conceptualizing about laterite (e.g. also as a complete weathering profile or theory about weathering) has led to calls for the term to be abandoned alto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Granite
Granite () is a coarse-grained (phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies underground. It is common in the continental crust of Earth, where it is found in igneous intrusions. These range in size from dikes only a few centimeters across to batholiths exposed over hundreds of square kilometers. Granite is typical of a larger family of ''granitic rocks'', or ''granitoids'', that are composed mostly of coarse-grained quartz and feldspars in varying proportions. These rocks are classified by the relative percentages of quartz, alkali feldspar, and plagioclase (the QAPF classification), with true granite representing granitic rocks rich in quartz and alkali feldspar. Most granitic rocks also contain mica or amphibole minerals, though a few (known as leucogranites) contain almost no dark minerals. Granite is nearly alway ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Grace, Western Australia
Lake Grace is a town in the eastern Wheatbelt region of Western Australia, from Perth along State Route 107 between Wagin and Ravensthorpe. It is the main town in the Shire of Lake Grace. At the 2016 census, Lake Grace had a population of 507. History The area was first taken up for agriculture around 1911. In 1913 a school was established and named Lake Grace after the nearby lake. In 1914 the government planned to extend the railway network from Kukerin to Lake Grace, and local settlers lobbied for a townsite to be declared at the terminus. The railway was completed on 25 November 1916, and terminated close to the site of the existing school. The townsite of Lake Grace was gazetted later in 1916. The branch railway was extended to the ultimate terminus at Newdegate on 15 February 1926 and a further branch from Lake Grace to Hyden opened on 5 April 1933, making Lake Grace a junction and therefore of some importance for train working operations. In 1922 the Reverend Joh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Barker, Western Australia
Mount Barker is a town on Albany Highway and the administrative centre of the Shire of Plantagenet in the Great Southern region of Western Australia. At the 2021 census, Mount Barker had a population of 2,855. The town was named after the nearby hill, which in turn was named in 1829 by Thomas Braidwood Wilson in honour of Captain Collet Barker, who was in command of Western Australia's original British settlement at King George's Sound from 1829 to 1831. __TOC__ Location Mount Barker is situated on Albany Highway, southeast of Perth and north of the city of Albany. The coastal town of Denmark is around by road to the southwest via the Denmark to Mount Barker Road. The timber town of Manjimup is west of Mount Barker, via Muirs Highway. The Hay River, which flows into Wilson Inlet at Denmark, begins its journey just west of Mount Barker. History Prior to European settlement, small groups of Aboriginal people, called the Bibbulmun (a clan of the Noongar) People, inh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Three Springs, Western Australia
Three Springs is a town located north of Perth, Western Australia on the Midlands Road, which until the opening of the Brand Highway in 1975 was the main road route from Perth to the state's north. The town is the seat of the Shire of Three Springs. Its economy is based on agriculture (mainly broad acre grain cropping and sheep farming) and mining. History The first Europeans to pass near the Three Springs area were government Assistant Surveyor Augustus Charles Gregory and Francis Thomas Gregory (both attached to the department of the Surveyor-General) and their brother Henry Churchman Gregory, on a public-private funded expedition to search for new agricultural land beyond the settled areas. On 14 September 1846 they camped at Eneabba Springs, southwest of Three Springs, while returning to Perth from the Irwin River. In 1867, government Assistant Surveyor Charles Cooke Hunt, while undertaking a road survey recorded the words "Three Springs" at the site of the current town af ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Southern (Western Australia)
__NOTOC__ The Great Southern Region is one of the nine regions of Western Australia, as defined by the Regional Development Commissions Act 1993, for the purposes of economic development. It is a section of the larger South coast of Western Australia and neighbouring agricultural regions. The region officially comprises the local government areas of Albany, Broomehill-Tambellup, Cranbrook, Denmark, Gnowangerup, Jerramungup, Katanning, Kent, Kojonup, Plantagenet and Woodanilling. The Great Southern Region has an area of and a population of about 54,000. Its administrative centre is the historic port of Albany. It has a Mediterranean climate, with hot, dry summers and cool, wet winters. The Stirling Range is the only place in Western Australia that regularly receives snowfalls, if only very light. The economy of the Great Southern Region is dominated by livestock farming, dairy farming and crop-growing. It has some of the most productive cereal grain and pastoral l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peel (Western Australia)
The Peel region is one of the nine regions of Western Australia. It is located on the west coast of Western Australia, about south of the state capital, Perth. It consists of the City of Mandurah, and the Shires of Shire of Boddington, Boddington, Shire of Murray, Murray, Shire of Serpentine-Jarrahdale, Serpentine-Jarrahdale and Shire of Waroona, Waroona. It has a total area of 6,648 km². In 2017, Peel had a population of 136,854, of which over sixty percent lived in Mandurah. In June 2019 the total population for the constituent LGAs was 142,960 Estimated resident population, 30 June 2019. within an area of 5516.3 sq km. The economy of the Peel region is dominated by mining and mineral processing; the area has large reserves of bauxite, some gold and mineral sands, and an aluminium refinery. Other important economic sectors include agriculture and a substantial equine industry. Before European settlement, the Peel region was inhabited by Indigenous Australians, specificall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheatbelt (Western Australia)
The Wheatbelt is one of nine regions of Western Australia defined as administrative areas for the state's regional development, and a vernacular term for the area converted to agriculture during colonisation. It partially surrounds the Perth metropolitan area, extending north from Perth to the Mid West region, and east to the Goldfields–Esperance region. It is bordered to the south by the South West and Great Southern regions, and to the west by the Indian Ocean, the Perth metropolitan area, and the Peel region. Altogether, it has an area of (including islands). The region has 42 local government authorities, with an estimated population of 75,000 residents. The Wheatbelt accounts for approximately three per cent of Western Australia's population. Ecosystems The area, once a diverse ecosystem, reduced when clearing began in the 1890s with the removal of plant species such as eucalypt woodlands and mallee, is now home to around 11% of Australia's critically end ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
