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Koenigia Hedbergii
:Koenigia'' as described by Philibert Commerçon is a synonym of ''Dombeya. ''Koenigia'' is a genus of plants in the family Polygonaceae. The genus ''Aconogonon'' has been merged into ''Koenigia''. Description Species of ''Koenigia'' are annual or perennial herbaceous plants, growing from taproots. The flowers are arranged in terminal or axillary inflorescences. The flowers have pale tepals: white, greenish to yellowish white or pink. The seeds are borne in achenes that are usually brown or black in colour and not winged. Taxonomy The genus ''Koenigia'' was erected by Carl Linnaeus in 1767, initially for the type species ''Koenigia islandica''. The boundaries between genera in the family Polygonaceae, and the relationships among them, have long been a problem. At one time, many species were placed in the genus ''Polygonum''. ''Koenigia'' is placed in the subfamily Polygonoideae, tribe Persicarieae, whose taxonomic history has been described as "exceptionally convoluted, even by P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philibert Commerçon
Philibert Commerson (; 18 November 1727 – 14 March 1773), sometimes spelled Commerçon by contemporaries, was a French natural history, naturalist, best known for accompanying Louis Antoine de Bougainville on his voyage of circumnavigation in 1766–1769. Biography Commerson was born at Châtillon-les-Dombes in France. He studied in Montpellier, and for a time was a practicing physician. He was in contact with Carl Linnaeus, who encouraged him to study fish of the Mediterranean. Commerson returned to live at Châtillon-les-Dombes, where he occupied himself in creating a botanical garden in 1758. After the death of his wife in 1762, he moved to Paris. In 1766, Commerson joined Bougainville on his voyage of circumnavigation after being recommended for the position of naturalist by the Paris Academy of Sciences. He had previously drawn up an extensive programme of nature studies for the Marine Ministry, in which he elaborated the "three natural kingdoms" which a naturalist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monophyly
In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria: # the grouping contains its own most recent common ancestor (or more precisely an ancestral population), i.e. excludes non-descendants of that common ancestor # the grouping contains all the descendants of that common ancestor, without exception Monophyly is contrasted with paraphyly and polyphyly as shown in the second diagram. A ''paraphyletic'' grouping meets 1. but not 2., thus consisting of the descendants of a common ancestor, excepting one or more monophyletic subgroups. A ''polyphyletic'' grouping meets neither criterion, and instead serves to characterize convergent relationships of biological features rather than genetic relationships – for example, night-active primates, fruit trees, or aquatic insects. As such, these characteristic features of a polyphyletic grouping are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koenigia Davisiae
''Koenigia davisiae'' is a flowering plant in the knotweed family that is known by the common names Davis' knotweed or Newberry knotweed. Distribution ''Koenigia davisiae'' is native to the western United States from Washington, Oregon, and central and northern California (northern Coast Ranges and northern Sierra Nevada). There are also isolated populations in central Idaho. It grows in high mountain habitat, such as talus and fellfields. Description ''Koenigia davisiae'' is a deciduous perennial herb producing a decumbent or upright stem from a woody caudex, growing to a maximum erect height near 40 centimeters (3 feet). Stems may be pale green to red in color. The leaves are oval and pointed or widely-lance-shaped to somewhat triangular, yellowish or pale green and waxy, slightly hairy, or smooth in texture. Leaf edges are entire or minutely toothed. At the base of each leaf is a thin reddish sheath formed from the leaf's stipules which is known as the ochrea An ochrea ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koenigia Cyanandra
:Koenigia'' as described by Philibert Commerçon is a synonym of ''Dombeya. ''Koenigia'' is a genus of plants in the family Polygonaceae. The genus ''Aconogonon'' has been merged into ''Koenigia''. Description Species of ''Koenigia'' are annual or perennial herbaceous plants, growing from taproots. The flowers are arranged in terminal or axillary inflorescences. The flowers have pale tepals: white, greenish to yellowish white or pink. The seeds are borne in achenes that are usually brown or black in colour and not winged. Taxonomy The genus ''Koenigia'' was erected by Carl Linnaeus in 1767, initially for the type species ''Koenigia islandica''. The boundaries between genera in the family Polygonaceae, and the relationships among them, have long been a problem. At one time, many species were placed in the genus ''Polygonum''. ''Koenigia'' is placed in the subfamily Polygonoideae, tribe Persicarieae, whose taxonomic history has been described as "exceptionally convoluted, even by P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koenigia Campanulata
''Koenigia campanulata'' is a species of flowering plant in the family Polygonaceae. It is native to China (Guizhou, west Hubei, Sichuan, Yunnan and Tibet), Bhutan, north Myanmar, Nepal and Sikkim Sikkim ( ; ) is a States and union territories of India, state in northeastern India. It borders the Tibet Autonomous Region of China in the north and northeast, Bhutan in the east, Koshi Province of Nepal in the west, and West Bengal in the .... It has been introduced into south Chile, Great Britain and Ireland. References External linksBellflower Knotweed in Flowers of India– images Polygonoideae Flora of South-Central China Flora of Tibet Flora of Bhutan Flora of Myanmar Flora of Nepal Plants described in 1886 {{Polygonaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koenigia Alpina
''Koenigia alpina'' (synonym ''Aconogonon alpinum''), commonly known as alpine knotweed, is similar to '' Koenigia alaskana'', but differs in leaf size and achene An achene (; ), also sometimes called akene and occasionally achenium or achenocarp, is a type of simple fruit, simple dry fruits, dry fruit produced by many species of flowering plants. Achenes are monocarpellate (formed from one carpel) and Dehi ... characteristics. It is native to Europe and temperate Asia. It is one of the parents of the cultivated hybrid ''Koenigia'' × ''fennica'', the other being '' Koenigia weyrichii''. References {{Taxonbar, from1=Q29032505, from2=Q848942, from3=Q22665879 Polygonoideae Flora of Central Asia Flora of Middle Europe Flora of Eastern Asia Flora of Eastern Europe Flora of Siberia Flora of Southeastern Europe Flora of Southwestern Europe Flora of the Caucasus Flora of the Russian Far East Plants described in 1895 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tanja Schuster
Tanja Magdalena Schuster is a taxonomist from Austria, and the first Pauline Ladiges Plant Systematics Fellow, holding a joint position with the School of Biosciences, University of Melbourne, Victoria, Australia, and the National Herbarium of Victoria, Royal Botanic Gardens Melbourne. Schuster also worked as curator of the Norton-Brown Herbarium at the University of Maryland, College Park. In 2011, Schuster created the genus ''Duma'' for some species previously placed in ''Muehlenbeckia'', but which were shown by molecular phylogenetic studies to form a distinct clade. The name is derived from the Latin for "thorn-bush." Selected works * * * * * Taxa authored by Schuster Schuster is listed in the International Plant Names Index as the author or co-author of 62 names, including: * ''Duma'' T.M.Schust. *'' Koenigia alaskana'' T.M.Schust. & Reveal (syn. ''Polygonum alpinum'') *''Koenigia alpina ''Koenigia alpina'' (synonym ''Aconogonon alpinum''), commonly known as alpi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koenigia Alaskana
''Koenigia alaskana'' (synonym ''Aconogonon alaskanum'', ''Persicaria alpina'') is an Asian and North American species of flowering plant in the buckwheat family known by the common names Alaska wild-rhubarb and alpine knotweed. Description This herbaceous or semi-evergreen perennial grows up to 2 meters (almost 7 feet) tall, with a woody root and lanceolate leaves. The abundant flowers are white, cream or pale green, borne in plumes in midsummer. They are followed by pinkish seed-heads later in summer or in early autumn. However, in a garden setting they are usually cut back after flowering to preserve vigour. Distribution and habitat ''Koenigia alaskana'' is native to Alaska, the Yukon, and Magadan Oblast in the Russian Far East. Cultivation It is cultivated in areas with enough space for its substantial mounds of foliage. Under the name ''Persicaria alpina'' it has received the Royal Horticultural Society's Award of Garden Merit The Award of Garden Merit (AGM) is a long-e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plants Of The World Online
Plants of the World Online (POWO) is an online taxonomic database published by the Royal Botanic Gardens, Kew. History Following the Convention on Biological Diversity, the Royal Botanic Gardens in Kew launched Plants of the World Online in March 2017 with the goal of creating an exhaustive online database of all seed-bearing plants worldwide. (Govaerts wrongly speaks of "Convention for Botanical Diversity (CBD)). The initial focus was on tropical African flora, particularly flora ''Zambesiaca'', flora of West and East Tropical Africa. Since March 2024, the website has displayed AI-generated predictions of the extinction risk for each plant. Description The database uses the same taxonomical source as the International Plant Names Index, which is the World Checklist of Vascular Plants (WCVP). The database contains information on the world's flora gathered from 250 years of botanical research. It aims to make available data from projects that no longer have an online ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
