|
Alternanthera Nahui
''Alternanthera nahui'', common name nahui, is a species in the family Amaranthaceae, native to New Zealand and to Norfolk Island. Description It is a perennial herb that has a slender tap root. Its stems are 1.5–3.0 mm in diameter and tend to lie down. It can be distinguished from ''Alternanthera sessilis'' by its narrower leaves, its keeled tepals, its shorter staminodes and style. Taxonomy It was first described in 2009 by Peter Heenan, Peter de Lange and J. Keeling. Synonymy There are no synonyms according to Plants of the World Online. However, according to NZPCN it has, from time to time, been incorrectly referred as ''Alternanthera sessilis'' (L.) Roem. & Schult. Habitat It is a coastal and lowland species found in both seasonally and permanently wet habitats. Conservation status In the 2018 conservation assessment of de Lange and others under the New Zealand Threat Classification System it was classed as "Not Threatened", having a "large, stable population". ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Brian Heenan
Peter Brian Heenan (born 1961) is a New Zealand botanist. Heenan graduated from the University of Canterbury with a PhD in 2000. Names published (incomplete list - 193 names published) *''Alternanthera nahui'' Heenan & de Lange, New Zealand J. Bot. 47(1): 102 (99-104; figs. 2B, 3C, 4B) (2009). *'' Arthropodium bifurcatum'' Heenan, A.D.Mitch. & de Lange, New Zealand J. Bot. 42(2): 239 (-242; fig. 7) (2004). *'' Brachyscome lucens'' Molloy & Heenan, Phytotaxa 415(1): 35 (2019). (These may not all be accepted names.) See also Taxa named by Peter Brian Heenan 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 nam .... Selected publications * * * References External links * * {{DEFAULTSORT:Heenan, Peter Brian 21st-century New Zealand botanists Living people 1961 births Un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter James De Lange
Peter James de Lange (born 1966) is a New Zealand botanist. Born and schooled in Hamilton, New Zealand, he graduated from the University of Waikato as B.Sc. in biological and earth sciences, then as M.Sc. in paleoecology and tephrochronostratigraphy. He has a PhD from the University of Auckland, the subject of his thesis, the biosystematics of ''Kunzea ericoides'' (kānuka). From 1990 to 2017 he worked as a threatened plant scientist in the Ecosystems and Species Unit of Research and Development in the New Zealand Department of Conservation. He is an adjunct professor at the University of Sassari in Sardinia and now employed as an associate professor in the School of Environmental & Animal Sciences, Unitec Institute of Technology in New Zealand. He is a Fellow of the Linnean Society, recipient of the New Zealand Botanical Society Allan Mere award (2006) and also the Loder Cup The Loder Cup is a New Zealand conservation award. It was donated by Gerald Loder, 1st Baron Wakehu ... [...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] |
New Zealand
New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island country by area, covering . New Zealand is about east of Australia across the Tasman Sea and south of the islands of New Caledonia, Fiji, and Tonga. The country's varied topography and sharp mountain peaks, including the Southern Alps, owe much to tectonic uplift and volcanic eruptions. New Zealand's capital city is Wellington, and its most populous city is Auckland. The islands of New Zealand were the last large habitable land to be settled by humans. Between about 1280 and 1350, Polynesians began to settle in the islands and then developed a distinctive Māori culture. In 1642, the Dutch explorer Abel Tasman became the first European to sight and record New Zealand. In 1840, representatives of the United Kingdom and Māori chiefs ... [...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] |
Alternanthera Sessilis
''Alternanthera sessilis'' is a flowering plant known by several common names, including sissoo spinach, Brazilian spinach, sessile joyweed and dwarf copperleaf. It is cultivated as a vegetable worldwide. Distribution The plant occurs throughout the tropical and subtropical regions of the Old World. It has been introduced to the southern United States, and its origins in Central and South America are uncertain. This species is classified as a weed in parts of the southern states of the USA. It is usually (but not always especially in areas of high humidity where it can even be a garden weed) found in wet or damp spots. Description This is a perennial herb with prostrate stems, rarely ascending, often rooting at the nodes. Leaves obovate to broadly elliptic, occasionally linear-lanceolate, 1–15 cm long, 0.3–3 cm wide, glabrous to sparsely villous, petioles 1–5 mm long. Flowers in sessile spikes, bract and bracteoles shiny white, 0.7–1.5 mm long, glabr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plants Of The World Online
Plants of the World Online (POWO) is an online database published by the Royal Botanic Gardens, Kew. It was launched in March 2017 with the ultimate aim being "to enable users to access information on all the world's known seed-bearing plants by 2020". The initial focus was on tropical African Floras, particularly Flora Zambesiaca, Flora of West Tropical Africa and Flora of Tropical East Africa. The database uses the same taxonomical source as Kew's World Checklist of Selected Plant Families, which is the International Plant Names Index, and the World Checklist of Vascular Plants (WCVP). POWO contains 1,234,000 global plant names and 367,600 images. See also *Australian Plant Name Index *Convention on Biological Diversity *World Flora Online *Tropicos Tropicos is an online botanical database containing taxonomic information on plants, mainly from the Neotropical realm (Central, and South America). It is maintained by the Missouri Botanical Garden and was established over 25 y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NZPCN
The New Zealand Plant Conservation Network (NZPCN) is a non-governmental organisation devoted to the protection and restoration of New Zealand's indigenous plant life, including vascular plants, mosses, liverworts, hornworts and lichens. Description The Network was founded in 2003 and has a worldwide membership. The Network was established as a mechanism to aid the implementation of the New Zealand Biodiversity Strategy and the Global strategy for plant conservation. Members include botanists, non-governmental organisations, research institutes such as universities, private businesses, botanic gardens, schools, central and local government employees, members of the public, ecological restoration programmes, and private landowners. ;Aims The Network has a vision that "no indigenous species of plant will become extinct nor be placed at risk of extinction as a result of human action or indifference, and that the rich, diverse and unique plant life of New Zealand will be recognised ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Zealand Threat Classification System
The New Zealand Threat Classification System is used by the Department of Conservation to assess conservation priorities of species in New Zealand. The system was developed because the IUCN Red List, a similar conservation status system, had some shortcomings for the unique requirements of conservation ranking in New Zealand. plants, animals, and fungi are evaluated, though the lattermost has yet to be published. Algae were assessed in 2005 but not reassessed since. Other protists have not been evaluated. Categories Species that are ranked are assigned categories: ;Threatened This category has three major divisions: ::*Nationally Critical - equivalent to the IUCN category of Critically endangered ::*Nationally Endangered - equivalent to the IUCN category of Endangered ::*Nationally Vulnerable - equivalent to the IUCN category of Vulnerable ;At Risk This has four categories: ::*Declining ::*Recovering ::*Relict ::*Naturally Uncommon ;Other categories ;;Introduced and Natur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australasian Virtual Herbarium
The ''Australasian Virtual Herbarium'' (AVH) is an online resource that allows access to plant specimen data held by various Australian and New Zealand herbaria. It is part of the Atlas of Living Australia (ALA), and was formed by the amalgamation of ''Australia's Virtual Herbarium'' and ''NZ Virtual Herbarium''. As of 12 August 2014, more than five million specimens of the 8 million and upwards specimens available from participating institutions have been databased. Uses This resource is used by academics, students, and anyone interested in research in botany in Australia or New Zealand, since each record tells all that is known about the specimen: where and when it was collected; by whom; its current identification together with the botanist who identified it; and information on habitat and associated species. ALA post processes the original herbarium data, giving further fields with respect to taxonomy and quality of the data. When interrogating individual specimen record ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alternanthera
''Alternanthera'' is a genus of flowering plants in the family Amaranthaceae. It is a widespread genus with most species occurring in the tropical Americas,Sánchez-Del Pino, I., et al. (2012)Molecular phylogenetics of ''Alternanthera'' (Gomphrenoideae, Amaranthaceae): resolving a complex taxonomic history caused by different interpretations of morphological characters in a lineage with C4 and C3–C4 intermediate species.''Botanical Journal of the Linnean Society'' 169(3), 493-517.''Alternanthera''. Flora of North America. and others in Asia, Africa, and Australia. Plants of the genus may be known generally as joyweeds, or Joseph's coat. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of New Zealand
This article relates to the flora of New Zealand, especially indigenous strains. New Zealand's geographical isolation has meant the country has developed a unique variety of native flora. However, human migration has led to the importation of many other plants (generally referred to as 'exotics' in New Zealand) as well as widespread damage to the indigenous flora, especially after the advent of European colonisation, due to the combined efforts of farmers and specialised societies dedicated to importing European plants & animals. Characteristics Indigenous New Zealand flora generally has the following characteristics: * the majority are evergreen. * few annual herbs. * few cold-tolerant trees. * majority are dispersed by birds. * very few have defences against mammalian browsers. * few nitrogen fixing plants. * few fire-adapted species. * many dioecious species. * flowers are typically small and white. * many plants have divaricating growth forms. * many plants have evolved in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
