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Grevillea Banksii
''Grevillea banksii'', commonly known as Banks' grevillea, Byfield waratah, red flowered silky oak and dwarf silky oak, and in Hawaii as kāhili flower, is a species of flowering plant in the family Proteaceae and is endemic to Queensland. It is an erect shrub or slender tree with divided leaves with four to twelve narrow lobes, and creamy white to bright scarlet and yellow flowers. Description ''Grevillea banksii'' is an erect, bushy to spindly shrub or slender tree that typically grows to a height of . It has mostly divided leaves with four to twelve narrowly elliptic to linear lobes long and wide with the edges turned down or rolled under. The flowers are arranged in more or less cylindrical groups near the ends of branches, each flower on a pedicel long along a rachis long, and are creamy-white or bright scarlet to crimson. The pistil is long and usually glabrous. Flowering occurs from August to October and the fruit is a glabrous follicle long. Taxonomy ''Grevillea b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ipswich, Queensland
Ipswich () is a city in South East Queensland, Australia. Situated on the Bremer River, it is approximately west of the Brisbane central business district. The city is renowned for its architectural, natural and cultural heritage. Ipswich preserves and operates from many of its historical buildings, with more than 6000 heritage-listed sites and over 500 parks. Ipswich began in 1827 as a mining settlement. History Early history Ipswich according to The Queenslander (Brisbane, Qld,: 1866-1939), Thursday 18 January 1934, Page 13 was tribally known as Coodjirar meaning place of the Red Stemmed Gum Tree in the Yugararpul language. Jagara (also known as Jagera, Yagara, and Yuggara) and Yugarabul (also known as Ugarapul and Yuggerabul) are Australian Aboriginal languages of South-East Queensland. There is some uncertainty over the status of Jagara as a language, dialect or perhaps a group or clan within the local government boundaries of Ipswich City Council, Lockyer Regional C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Queensland
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms '' gut flora'' or '' skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de ... [...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] |
Contact Dermatitis
Contact dermatitis is a type of acute or chronic inflammation of the skin caused by exposure to chemical or physical agents. Symptoms of contact dermatitis can include itchy or dry skin, a red rash, bumps, blisters, or swelling. These rashes are not contagious or life-threatening, but can be very uncomfortable. Contact dermatitis results from either exposure to allergens (allergic contact dermatitis), or irritants (irritant contact dermatitis). Allergic contact dermatitis involves a delayed type of hypersensitivity and previous exposure to an allergen to produce a reaction. Irritant contact dermatitis is the most common type and represents 80% of all cases. It is caused by prolonged exposure to irritants, leading to direct injury of the epidermal cells of the skin, which activates an immune response, resulting in an inflammatory cutaneous reaction. Phototoxic dermatitis occurs when the allergen or irritant is activated by sunlight. Diagnosis of allergic contact dermatitis can o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alkyl Resorcinol
In organic chemistry, an alkyl group is an alkane missing one hydrogen. The term ''alkyl'' is intentionally unspecific to include many possible substitutions. An acyclic alkyl has the general formula of . A cycloalkyl is derived from a cycloalkane by removal of a hydrogen atom from a ring and has the general formula . Typically an alkyl is a part of a larger molecule. In structural formulae, the symbol R is used to designate a generic (unspecified) alkyl group. The smallest alkyl group is methyl, with the formula . Related concepts Alkylation is an important operation in refineries, for example in the production of high-octane gasoline. Alkylating antineoplastic agents are a class of compounds that are used to treat cancer. In such case, the term alkyl is used loosely. For example, nitrogen mustards are well-known alkylating agents, but they are not simple hydrocarbons. In chemistry, alkyl is a group, a substituent, that is attached to other molecular fragments. For exam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrogen Cyanide
Hydrogen cyanide, sometimes called prussic acid, is a chemical compound with the formula HCN and structure . It is a colorless, extremely poisonous, and flammable liquid that boils slightly above room temperature, at . HCN is produced on an industrial scale and is a highly valued precursor to many chemical compounds ranging from polymers to pharmaceuticals. Large-scale applications are for the production of potassium cyanide and adiponitrile, used in mining and plastics, respectively. It is more toxic than solid cyanide compounds due to its volatile nature. Structure and general properties Hydrogen cyanide is a linear molecule, with a triple bond between carbon and nitrogen. The tautomer of HCN is HNC, hydrogen isocyanide. Hydrogen cyanide is weakly acidic with a p''K''a of 9.2. It partially ionizes in water solution to give the cyanide anion, CN−. A solution of hydrogen cyanide in water, represented as HCN, is called ''hydrocyanic acid''. The salts of the cyanide ani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toxicity
Toxicity is the degree to which a chemical substance or a particular mixture of substances can damage an organism. Toxicity can refer to the effect on a whole organism, such as an animal, bacterium, or plant, as well as the effect on a substructure of the organism, such as a cell ( cytotoxicity) or an organ such as the liver (hepatotoxicity). By extension, the word may be metaphorically used to describe toxic effects on larger and more complex groups, such as the family unit or society at large. Sometimes the word is more or less synonymous with poisoning in everyday usage. A central concept of toxicology is that the effects of a toxicant are dose-dependent; even water can lead to water intoxication when taken in too high a dose, whereas for even a very toxic substance such as snake venom there is a dose below which there is no detectable toxic effect. Toxicity is species-specific, making cross-species analysis problematic. Newer paradigms and metrics are evolving to bypas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grevillea 'Superb'
''Grevillea'' 'Superb' is a widely grown grevillea cultivar bred by Merv Hodge in Queensland. It is a hybrid of a white-flowered ''Grevillea banksii'', from Queensland, and the Western Australian plant '' G. bipinnatifida''. Description A compact shrub growing to 1–2 metres high and wide with attractive green lobed leaves (similar to the cultivar 'Robyn Gordon'), its main horticultural feature is its flowering for 12 months of the year in warmer climates, such as Sydney and Queensland. The inflorescences are around 15 cm long by 9 cm wide and contain shades of orange, red and yellow. Cultivation It has been very popular in Australian gardens since the 1990s, and widely planted in public spaces as well, though now there is an interest in ever smaller garden plants. The plant produces nectar and attracts both birds and bees. It likes a sunny, well drained position, will tolerate moderate frosts and grows well in a tub. Avoid using fertilisers that are high in phosp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grevillea 'Robyn Gordon'
''Grevillea'' 'Robyn Gordon' is a grevillea cultivar which has been planted widely in Australia and other countries. Description It is a shrub that grows to two metres high and three metres wide, with divided leaves. The deep red inflorescences are about 15 cm long by 9 cm wide and attract honeyeaters. Origins The cultivar, was a chance cross between a red-flowered form of ''Grevillea banksii'' and '' G. bipinnatifida'', selected by the late plant collector David Gordon in Queensland for its prolific and sustained flowering. Trials, which began in 1963, demonstrated stability in its characteristics and it was released to the nursery trade in 1968. It was registered in 1973 under the name 'Robyn Gordon' in memory of his daughter who died in 1969, aged 16. Grevillea "Robyn Gordon" and Similar Cultivars article, Australian Native Plants Society (Australia) http://anpsa.org.au/g-super1.html Allergies Along with a number of other grevilleas in the Robyn Gordon group of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acacia Dealbata
''Acacia dealbata'', the silver wattle, blue wattle or mimosa, is a species of flowering plant in the legume family (botany), family Fabaceae, native plant, native to southeastern Australia in New South Wales, Victoria, Tasmania, and the Australian Capital Territory, and widely introduced in Mediterranean, warm temperate, and highland tropical landscapes.Australian Plant Name Index''Acacia dealbata''/ref> Description It is a fast-growing evergreen tree or shrub growing up to 30 m tall, typically a pioneer species after fire. The leaves are bipinnate, glaucous blue-green to silvery grey, 1–12 cm (occasionally to 17 cm) long and 1–11 cm broad, with 6–30 pairs of pinnae, each pinna divided into 10–68 pairs of leaflets; the leaflets are 0.7–6 mm long and 0.4–1 mm broad. The flowers are produced in large raceme, racemose inflorescences made up of numerous smaller globose bright yellow flowerheads of 13–42 individual flowers. The fruit is a flatte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
