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Grevillea Diffusa
''Grevillea diffusa'' is a species of flowering plant in the family Proteaceae and is endemic to the Sydney region of New South Wales. It is a low, compact shrub with elliptic to linear leaves, and dark red, or dark crimson to scarlet and burgundy-coloured flowers. Description ''Grevillea diffusa'' is compact shrub that typically grows to a height of up to but sometimes an erect shrub to . The leaves are elliptic to lance-shaped with the narrower end towards the base, or linear, long and wide, the lower surface silky-hairy and the edges curved down or rolled under. The flowers are arranged in dome-shaped to more or less spherical groups and are dark red, dark crimson to burgundy-coloured or scarlet, depending on subspecies. The pistil is usually long and the style strongly curved and more or less glabrous. Flowering occurs from July to November and the fruit is a glabrous follicle. Taxonomy ''Grevillea diffusa'' was first formally described in 1827 by Kurt Polycarp Joach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heathcote National Park
Heathcote National Park is a protected national park that is located in the southern region of Sydney, New South Wales in eastern Australia, and is situated on Dharawal country. The national park is situated approximately southwest of the Sydney central business district, west of the South Coast railway line, the Princes Highway and Motorway, and the suburbs of and . Geography The park consists of 2,679 hectares of woodland, predominantly dry schlerophyll forest on the ridges and low heath in the wetter areas. The Hawkesbury sandstone has been carved up by various watercourses like Heathcote Creek, Kingfisher Creek and Myuna Creek, creating deep valleys. The Hawkesbury sandstone has created a sandy, infertile soil that is typical of the Sydney region. The main walking track is the Bullawarring Track, which stretches from Waterfall to Heathcote. It largely follows the valley of Heathcote Creek, the main watercourse in the park, as well as utilizing a maintenance road that lea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Plant Census
The Australian Plant Census (APC) provides an online interface to currently accepted, published, scientific names of the vascular flora of Australia, as one of the output interfaces of the national government Integrated Biodiversity Information System (IBIS – an Oracle Co. relational database management system). The Australian National Herbarium, Australian National Botanic Gardens, Australian Biological Resources Study and the Council of Heads of Australasian Herbaria coordinate the system. The Australian Plant Census interface provides the currently accepted scientific names, their synonyms, illegitimate, misapplied and excluded names, as well as state distribution data. Each item of output hyperlinks to other online interfaces of the information system, including the Australian Plant Name Index (APNI) and the Australian Plant Image Index (APII). The outputs of the Australian Plant Census interface provide information on all native and naturalised vascular plant taxa of Australi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proteales Of Australia
Proteales is an order of flowering plants consisting of three (or four) families. The Proteales have been recognized by almost all taxonomists. The representatives of the Proteales are very different from each other. The order contains plants that do not look alike at all. What they have in common is seeds with little or no endosperm. The ovules are often atropic. Families In the classification system of Dahlgren the Proteales were in the superorder Proteiflorae (also called Proteanae). The APG II system of 2003 also recognizes this order, and places it in the clade eudicots with this circumscription: * order Proteales :* family Nelumbonaceae :* family Proteaceae family Platanaceae">Platanaceae.html" ;"title=" family Platanaceae"> family Platanaceae with "+ ..." = optionally separate family (that may be split off from the preceding family). The APG III system of 2009 followed this same approach, but favored the narrower circumscription of the three families, firmly reco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grevillea
''Grevillea'', commonly known as spider flowers, is a genus of about 360 species of evergreen flowering plants in the family Proteaceae. Plants in the genus ''Grevillea'' are shrubs, rarely trees, with the leaves arranged alternately along the branches, the flowers zygomorphic, arranged in racemes at the ends of branchlets, and the fruit a follicle that splits down one side only, releasing one or two seeds. Description Plants in the genus ''Grevillea'' are shrubs, rarely small trees with simple or compound leaves arranged alternately along the branchlets. The flowers are zygomorphic and typically arranged in pairs along a sometimes branched raceme at the ends of branchlets. The flowers are bisexual, usually with four tepals in a single whorl. There are four stamens and the gynoecium has a single carpel. The fruit is a thin-walled follicle that splits down only one side, releasing one or two seeds before the next growing season. Taxonomy The genus ''Grevillea'' was first forma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fire Regime
A fire regime is the pattern, frequency, and intensity of the bushfires and wildfires that prevail in an area over long periods of time. It is an integral part of fire ecology, and renewal for certain types of ecosystems. A fire regime describes the spatial and temporal patterns and ecosystem impacts of fire on the landscape, and provides an integrative approach to identifying the impacts of fire at an ecosystem or landscape level.Morgan, Penelope; Hardy; Swetnam; Rollins; Long (1999)"Mapping fire regimes across time and space: Understanding coarse and fine-scale fire patterns"(PDF). ''International Journal of Wildland Fire''. 10: 329–342 – via Google Scholar. If fires are too frequent, plants may be killed before they have matured, or before they have set sufficient seed to ensure population recovery. If fires are too infrequent, plants may mature, senesce, and die without ever releasing their seed. Fire regimes can change with the spatial and temporal variations in topography, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN Red List
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit. The aim of the IUCN Red List is to convey the urgency of conservation issues to the public and policy makers, as well as help the international community to reduce species extinction. According to IUCN the formally stated goals of the Red List are to provi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Least-concern Species
A least-concern species is a species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species conservation because the specific species is still plentiful in the wild. They do not qualify as threatened, near threatened, or (before 2001) conservation dependent. Species cannot be assigned the "Least Concern" category unless they have had their population status evaluated. That is, adequate information is needed to make a direct, or indirect, assessment of its risk of extinction based on its distribution or population status. Evaluation Since 2001 the category has had the abbreviation "LC", following the IUCN 2001 Categories & Criteria (version 3.1). Before 2001 "least concern" was a subcategory of the "Lower Risk" category and assigned the code "LR/lc" or lc. Around 20% of least concern taxa (3261 of 15636) in the IUCN database still use the code "LR/lc", which indicates they have not been re-evaluate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount White, New South Wales
Mount White is a suburb of the Central Coast region of New South Wales, Australia, located north of Sydney. It is part of the local government area A local government area (LGA) is an administrative division of a country that a local government is responsible for. The size of an LGA varies by country but it is generally a subdivision of a State (administrative division), state, province, divi .... It is home to a minor interchange on the Pacific Motorway. External links Suburbs of the Central Coast (New South Wales) {{CentralCoastNSW-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calga
Calga is a suburb of the Central Coast region of New South Wales, Australia, located north of Sydney. It is part of the local government area. It is home to a major interchange on the Pacific Motorway, Old Pacific Highway, and the Australia Walkabout Wildlife Park. History Calga lies within the traditional lands of both the native Darkinjung and Kuringgai peoples and is an Aboriginal word meaning "the mouth". The locality's main feature is the state heritage-registered Aboriginal women's site, whose highlight includes the site of a sandstone amphitheatre. Population In the 2016 Census, there were 142 people in Calga. 78.0% of people were born in Australia and 85.5% of people spoke only English at home. Heritage listings Calga has a number of heritage-listed sites, including: * Peats Ridge Road: Calga Aboriginal Cultural Landscape Calga Aboriginal Cultural Landscape is a heritage-listed site at Peats Ridge Road, Calga, Central Coast Council, New South Wales, Aust ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Illawarra
The Illawarra is a coastal region in the Australian state of New South Wales, nestled between the mountains and the sea. It is situated immediately south of Sydney and north of the South Coast region. It encompasses the two cities of Wollongong, Shellharbour and the coastal town of Kiama. Wollongong is the largest city of the Illawarra with a population of 240,000, then Shellharbour with a population of 70,000 and Kiama with a population of 10,000. These three cities have their own suburbs. Wollongong stretches from Otford in the north to Windang in the south, with Maddens Plains and Cordeaux in the west. The Illawarra region is characterised by three distinct districts: the north-central district, which is a contiguous urban sprawl centred on Lake Illawarra, the western district defined by the Illawarra escarpment, which leads up to the fringe of Greater Metropolitan Sydney including the Macarthur in the northwest, and to the Southern Highlands region in the southwest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georges River
The Georges River, also known as Tucoerah River, is an intermediate tide-dominated drowned valley estuary, located to the south and west of Sydney, New South Wales, Australia. The river travels for approximately in a north and then easterly direction to its mouth at Botany Bay, about from the Tasman Sea. The Georges River is the main tributary of Botany Bay; with the Cooks River being a secondary tributary. The total catchment area of the river is approximately and the area surrounding the river is managed by various local government authorities and NSW Government agencies. The land adjacent to the Georges River was occupied for many thousands of years by the Tharawal and Eora peoples. They used the river as an important source of food and a place for trade. Geography From its source east of Appin within heath habitat of Wollondilly Shire & Wollongong Local government area, the Georges River flows north through rugged sandstone gorges to the east of Campbelltown ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helensburgh, New South Wales
Helensburgh, New South Wales, Australia is a small town, located 45 kilometres south of the Sydney central business district and north of Wollongong and north and above the Illawarra escarpment and region. Helensburgh is in the Wollongong City Council local government area. It is surrounded by bushland reserves being adjacent to the southern end of the Royal National Park and Garawarra State Conservation Area and the Woronora reservoir water catchment is to its west. Geography The town is on the Woronora Plateau. To the southeast, it is separated from Otford in the Hacking River valley below by a high ridge but linked to it by the South Coast Railway and Otford Road. It is separated from Waterfall by Garawarra State Conservation Area and the former Garawarra sanitorium but linked to it by the South Coast Railway with tight bends descending from the line's highest point at Waterfall to Helensburgh Station. To the north of Helensburgh and east of the railway line are the two segm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
