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Verticordia Crebra
''Verticordia crebra'', commonly known as Barrens featherflower, crowded featherflower or Twertup featherflower, is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a sprawling shrub with crowded, cylinder-shaped leaves with small, yellow flowers that are almost hidden by the leaves but with a style which extends well beyond the petals. The plant looks superficially like a miniature pine tree. Description ''Verticordia crebra'' is a sprawling, open-branched shrub with a single main stem and which grows to a height of about and a width of . Its leaves are crowded over the entire plant, linear in shape and round in cross-section, long with a stalk long, giving the plant the appearance of a small pine tree. The flowers are scattered, appearing in a few upper leaf axils on erect or spreading stalks long, and apart from the styles are almost hidden by the foliage. The floral cup is shaped like half a sphere, about long ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flowering Plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants that produce their seeds enclosed within a fruit. They are by far the most diverse group of land plants with 64 orders, 416 families, approximately 13,000 known genera and 300,000 known species. Angiosperms were formerly called Magnoliophyta (). Like gymnosperms, angiosperms are seed-producing plants. They are distinguished from gymnosperms by characteristics including flowers, endosperm within their seeds, and the production of fruits that contain the seeds. The ancestors of flowering plants diverged from the common ancestor of all living gymnosperms before the end of the Carboniferous, over 300 million years ago. The closest fossil relatives of flowering plants are uncertain and contentious. The earliest angiosperm fossils ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verticordia Sect
:For the clam genus, see ''Verticordia'' (bivalve). ''Verticordia'' is a genus of more than 100 species of plants commonly known as featherflowers, in the myrtle family, Myrtaceae. They range in form from very small shrubs such as '' V. verticordina'' to trees like '' V. cunninghamii'', some spindly, others dense and bushy, but the majority are woody shrubs up to tall. The flowers are variously described as "feathery", "woolly" or "hairy" and are found in most colours except blue. They often appear to be in rounded groups or spikes but in fact are always single, each flower borne on a separate stalk in a leaf axil. Each flower has five sepals and five petals all of a similar size with the sepals often having feathery or hairy lobes. There are usually ten stamens alternating with variously shaped staminodes. The style is simple, usually not extending beyond the petals and often has hairs near the tip. All but two species are found in Southwest Australia, the other two occurring i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Declared Rare And Priority Flora List
The Declared Rare and Priority Flora List is the system by which Western Australia's conservation flora are given a priority. Developed by the Government of Western Australia's Department of Environment and Conservation, it was used extensively within the department, including the Western Australian Herbarium. The herbarium's journal, ''Nuytsia'', which has published over a quarter of the state's conservation taxa, requires a conservation status to be included in all publications of new Western Australian taxa that appear to be rare or endangered. The system defines six levels of priority taxa: ;X: Threatened (Declared Rare Flora) – Presumed Extinct Taxa: These are taxa that are thought to be extinct, either because they have not been collected for over 50 years despite thorough searching, or because all known wild populations have been destroyed. They have been declared as such in accordance with the Wildlife Conservation Act 1950, and are therefore afforded legislative protecti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBRA
The Interim Biogeographic Regionalisation for Australia (IBRA) is a biogeographic regionalisation of Australia developed by the Australian government's Department of Sustainability, Environment, Water, Population, and Communities. It was developed for use as a planning tool, for example for the establishment of a national reserve system. The first version of IBRA was developed in 1993–94 and published in 1995. Within the broadest scale, Australia is a major part of the Australasia biogeographic realm, as developed by the World Wide Fund for Nature. Based on this system, the world is also split into 14 terrestrial habitats, of which eight are shared by Australia. The Australian land mass is divided into 89 bioregions and 419 subregions. Each region is a land area made up of a group of interacting ecosystems that are repeated in similar form across the landscape. IBRA is updated periodically based on new data, mapping improvements, and review of the existing scheme. The most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mallee (biogeographic Region)
Mallee, also known as Roe Botanical District, is a biogeographic region in southern Western Australia. Located between the Esperance Plains, Avon Wheatbelt and Coolgardie bioregions, it has a low, gently undulating topography, a semi-arid mediterranean climate, and extensive ''Eucalyptus'' mallee vegetation. It has an area of . About half of the region has been cleared for intensive agriculture. Recognised as a region under the Interim Biogeographic Regionalisation for Australia (IBRA), it was first defined by John Stanley Beard in 1980. Geography and geology The Mallee region has a complex shape with tortuous boundaries, but may be roughly approximated as the triangular area south of a line from Bruce Rock to Eyre, but not within 40 kilometres (25 mi) of the south coast, except at its eastern limits. It has an area of about 79000 square kilometres (31000 mi²), making it about a quarter of the South West Botanic Province, 3% of the state, and 1% of Australia. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Esperance Plains
Esperance Plains, also known as Eyre Botanical District, is a biogeographic region in southern Western Australia on the south coast between the Avon Wheatbelt and Hampton bioregions, and bordered to the north by the Mallee region. It is a plain punctuated by granite and quartz outcrops and ranges, with a semi-arid Mediterranean climate and vegetation consisting mostly of mallee-heath and proteaceous scrub. About half of the region has been cleared for intensive agriculture. Recognised as a bioregion under the Interim Biogeographic Regionalisation for Australia (IBRA), it was first defined by John Stanley Beard in 1980. Geography and geology The Esperance Plains may be roughly approximated as the land within of the coast between Albany and Point Culver on the south coast of Western Australia. It has an area of about , making it about 9% of the South West Province, 1% of the state, and 0.3% of Australia. It is bounded to the north by the Mallee region, and to the west by ... [...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] |
Spongolite
{{unreferenced, date=February 2019 Spongolite is a stone made almost entirely from fossilised sponges. It is light and porous. The silica spicules fossilised with the sponges makes the material hazardous to handle by being highly abrasive. Because the spicules are embedded in soft fossils, the abrasion damage is not as immediately apparent as it would be from sandpaper or rough bricks. Spongolite is obtained from mines in Mount Barker, Western Australia and Mato Grosso do Sul, Brazil. There are also large deposits near Esperance, Western Australia Esperance is a town in the Goldfields–Esperance region of Western Australia, on the Southern Ocean coastline approximately east-southeast of the state capital, Perth. The urban population of Esperance was 12,145 at June 2018. Its major in .... Sedimentary rocks ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verticordia Fimbrilepis
''Verticordia fimbrilepis'', commonly known as shy featherflower, is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a small, bushy shrub with one openly branched main stem at its base, small, pointed leaves and rounded groups of pink flowers near the ends of the branches. Description ''Verticordia fimbrilepis'' is a shrub which grows to a height and width of about and which has one openly branched stem at its base. The leaves lower on the stems are linear in shape, almost round in cross-section, long with a rounded end with a sharp point. Those near the flowers are more oblong to narrow egg-shaped. The flowers are arranged in rounded groups on stalks long near the ends of the branches. The floral cup is broadly top-shaped, about long, glabrous but slightly rough. The sepals are pink, sometimes white, long, with 5 to 7 hairy lobes. The petals are also pink or white, and are long, egg-shaped with long, coarse hai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verticordia Pityrhops
''Verticordia pityrhops'', commonly known as East Mount Barren featherflower or pine-like featherflower, is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a single-stemmed shrub which is densely-branched with crowded narrow linear leaves giving the impression of a miniature pine tree. When it flowers in autumn, the shrub is completely covered with masses of very small, honey-scented, pinkish-purple flowers. Description ''Verticordia pityrhops'' is a shrub with a single, thick, densely branched main stem and a few side branches and which grows to a height of and wide, although some specimens grow to as high as . Its leaves are dark green and crowded, narrow linear, almost needle-like, long with a pointed tip. The flowers are scented and arranged in corymb-like groups near the ends of the branches, each flower on a stalk long. The floral cup is top-shaped, about long, smooth but hairy. The sepals are about long, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verticordia Harveyi
''Verticordia harveyi'', commonly known as autumn featherflower, is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a slender, spindly shrub with relatively long leaves and small white, pink or magenta-coloured flowers in late summer and autumn. Description ''Verticordia harveyi'' is a spindly, openly branched shrub which grows to high and wide. The leaves are long, linear in shape, nearly circular in cross-section and terminate in a long point. The flowers are arranged in corymb-like groups, each flower on an erect stalk, long. The floral cup is top-shaped, long, smooth and covered with short, soft hairs. The sepals are white or pink to magenta-coloured, long, with 6 to 8 hairy lobes. The petals are the same colour as the sepals, about , egg-shaped and erect with pointed teeth around their edges and hairs on the outside surface. The staminodes are longer than the stamens, curve inwards and are hairy. The style ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verticordia Sieberi
''Verticordia sieberi'' is a flowering plant in the myrtle family, Myrtaceae and is endemic to the south-west of Western Australia. It is a shrub with one main stem, often compact but sometimes openly branched and with pink to pale purple flowers in summer and autumn. Description ''Verticordia sieberi'' is a shrub with a single main branch and which usually grows to a height of less than . It is sometimes a compact, small shrub but may also be openly branched with the flowers held high above most of the foliage. The leaves are linear to elliptic, long and semi-circular in cross-section. The flowers are scented and arranged in round or corymb-like groups near the ends of the branches, each flower on an erect stalk long. The floral cup is about long, smooth and hairy. The sepals are spreading, long, white to deep pink with 5 to 7 feathery lobes. The petals are a similar colour to the petals, erect, about long, with short hairs around its edge. The style is long, curved and ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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