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Achyranthes Arborescens
''Achyranthes arborescens'' (common names - Chaff tree, Soft-wood) is a plant in the Amaranthaceae family endemic to Norfolk Island. It is a critically endangered species under the Australian Federal government's Environment Protection and Biodiversity Conservation Act. Description ''A. arborescens'' is a soft-wooded tree growing up to a height of 9 m. Its leaves are on slender stalks which are 5–15 mm long and have hairs lying close to them (appressed hairs). The leaf blades are elliptic to slightly oblanceolate, and from 50 to 80 mm long (sometimes 30–100 mm long) by 20–35 mm broad (with the juvenile foliage being larger). The base of the blade is acute and attenuates to the stalk. The leaf margins have irregular and very shallowly rounded teeth, and are yellow-green or dark green above, and light green below. The margins are very minutely fringed, and there are appressed hairs on the midrib beneath. The inflorescence is a spike and is terminal on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Brown (botanist, Born 1773)
Robert Brown (21 December 1773 – 10 June 1858) was a Scottish botanist and paleobotanist who made important contributions to botany largely through his pioneering use of the microscope. His contributions include one of the earliest detailed descriptions of the cell nucleus and cytoplasmic streaming; the observation of Brownian motion; early work on plant pollination and fertilisation, including being the first to recognise the fundamental difference between gymnosperms and angiosperms; and some of the earliest studies in palynology. He also made numerous contributions to plant taxonomy, notably erecting a number of plant families that are still accepted today; and numerous Australian plant genera and species, the fruit of his exploration of that continent with Matthew Flinders. Early life Robert Brown was born in Montrose on 21 December 1773, in a house that existed on the site where Montrose Library currently stands. He was the son of James Brown, a minister in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amaranthaceae
Amaranthaceae is a family of flowering plants commonly known as the amaranth family, in reference to its type genus ''Amaranthus''. It includes the former goosefoot family Chenopodiaceae and contains about 165 genera and 2,040 species, making it the most species-rich lineage within its parent order, Caryophyllales. Description Vegetative characters Most species in the Amaranthaceae are annual or perennial herbs or subshrubs; others are shrubs; very few species are vines or trees. Some species are succulent. Many species have stems with thickened nodes. The wood of the perennial stem has a typical "anomalous" secondary growth; only in subfamily Polycnemoideae is secondary growth normal. The leaves are simple and mostly alternate, sometimes opposite. They never possess stipules. They are flat or terete, and their shape is extremely variable, with entire or toothed margins. In some species, the leaves are reduced to minute scales. In most cases, neither basal nor terminal aggrega ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norfolk Island
Norfolk Island (, ; Norfuk: ''Norf'k Ailen'') is an external territory of Australia located in the Pacific Ocean between New Zealand and New Caledonia, directly east of Australia's Evans Head and about from Lord Howe Island. Together with the neighbouring Phillip Island and Nepean Island, the three islands collectively form the Territory of Norfolk Island. At the 2021 census, it had inhabitants living on a total area of about . Its capital is Kingston. The first known settlers in Norfolk Island were East Polynesians but they had already departed when Great Britain settled it as part of its 1788 settlement of Australia. The island served as a convict penal settlement from 6 March 1788 until 5 May 1855, except for an 11-year hiatus between 15 February 1814 and 6 June 1825, when it lay abandoned. On 8 June 1856, permanent civilian residence on the island began when descendants of the ''Bounty'' mutineers were relocated from Pitcairn Island. In 1914 the UK handed Norfo ... [...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 number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solanum Mauritianum
''Solanum mauritianum'' is a small tree or shrub native to South America, including Northern Argentina, Southern Brazil, Paraguay and Uruguay. Its common names include earleaf nightshade (or "ear-leaved nightshade"), woolly nightshade, flannel weed, bugweed, tobacco weed, tobacco bush, wild tobacco and kerosene plant. Description The woolly nightshade is a multi-branched shrub or small tree between 2 and 4 meters high (but can grow up to tall in the right conditions). The plant has a strong odor and a life span of up to thirty years. The simple, entire, ovate-elliptical large leaves are up to 40 centimeters long, 30 centimeters wide and are grey-green in color. The tip of the leaf is pointed, the base is wedge-shaped. They sit on 3 to 9 centimeters long petioles. They are dense, tomentose with hairy yellowish, long-stemmed, star-shaped trichomes. Inflorescence The slightly scented inflorescences are cymes of purple single flowers with a yellow center and sit on 15 centimete ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homalanthus Populifolius
''Homalanthus populifolius'', the bleeding heart, native poplar or Queensland poplar, is an Australian rainforest plant in the family Euphorbiaceae. It often appears in areas of rainforest disturbance. Bleeding heart is highly regarded by rainforest regenerators because of its fast growth and use as a pioneer species in rainforest regeneration. Bleeding heart grows from the coastal border of New South Wales and Victoria (36° S), north to Coen, Queensland (13° S) in the tropics. It is also native to Lord Howe Island, Norfolk Island, Papua New Guinea and Solomon Islands, and has been widely planted elsewhere. It is the host plant for Australia's largest moth, the Hercules moth (''Coscinocera hercules''). Description It is a small tree or shrub, up to 8 meters tall and 15 cm in diameter. The trunk is cylindrical with greyish-brown bark, fairly smooth but with some bumps and irregularities. Branchlets appear thick, reddish or green. The leaves are triangular, not toothed an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ipomoea Cairica
''Ipomoea cairica'' is a vining, herbaceous, perennial plant with palmate leaves and large, showy white to lavender flowers. A species of morning glory, it has many common names, including mile-a-minute vine, Messina creeper, Cairo morning glory, coast morning glory and railroad creeper.Ipomoea cairica (L.) Sweet USDA PLANTS The species name ''cairica'' translates to "from ", the city where this species was first collected.Ipomoea cairica (L.) Sweet var. cairica SA National Biodiversity Institute Description ...
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Achyranthes
''Achyranthes'' is a genus of medicinal and ornamental plants in the amaranth family, Amaranthaceae. Chaff flower is a common name for plants in this genus. Species include: * '' Achyranthes ancistrophora'' C.C.Towns. * '' Achyranthes arborescens'' R.Br. * '' Achyranthes aspera'' L. (= ''A. argentea'') (Sanskrit : apamarg (अपामार्ग)) * '' Achyranthes atollensis'' (extinct) * '' Achyranthes bidentata'' Blume * '' Achyranthes coynei'' Santapau * ''Achyranthes diandra'' Roxb. * ''Achyranthes fasciculata'' ( Suess.) C.C.Towns. * '' Achyranthes faureri'' * '' Achyranthes mangarevica'' Suess. * '' Achyranthes marchionica'' R.Br. * '' Achyranthes margaretarum'' de Lange * '' Achyranthes mutica'' A.Gray ex H.Mann * ''Achyranthes shahii'' M.R.Almeida & S.M.Almeida * ''Achyranthes splendens'' Mart. ex Moq. * '' Achyranthes talbotii'' Hutch. & Dalziel Dalziel, Dalzell or Dalyell ( ) is a Scottish surname. Pronunciation The unintuitive spelling of the name is d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Robert Brown (botanist, Born 1773)
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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