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Oenanthe Fistulosa
''Oenanthe fistulosa'', tubular water-dropwort, is a flowering plant in the carrot family, native to Europe, North Africa and western parts of Asia. It is an uncommon plant of wetlands, growing around pools and along ditches, mainly in areas of high conservation value. Description Tubular water-dropwort is a hairless, stoloniferous perennial growing up to 80 cm tall with brittle, hollow, inflated cylindrical stems 0.5 cm in diameter, which are constricted at the nodes (hence the specific name ''fistulosa''). Unlike some other water-dropworts, it has no swollen tubers among the roots, but it can reproduce vegetatively by the lengthy stolons. The leaves vary widely in shape, with the upper ones being typically pinnate and having narrow, almost linear segments, while the lower ones can be 2- or even 3-times pinnate, with broader, flat leaflets, more like those of other umbellifers. The leaf stalks of the upper leaves are fistular, like the stem, and longer than the pin ...
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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 ...
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Stigma (botany)
The stigma () is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. Description The stigma, together with the style and ovary (typically called the stigma-style-ovary system) comprises the pistil, which is part of the gynoecium or female reproductive organ of a plant. The stigma itself forms the distal portion of the style, or stylodia, and is composed of , the cells of which are receptive to pollen. These may be restricted to the apex of the style or, especially in wind pollinated species, cover a wide surface. The stigma receives pollen and it is on the stigma that the pollen grain germinates. Often sticky, the stigma is adapted in various ways to catch and trap pollen with various hairs, flaps, or sculpturings. The pollen may be captured from the air (wind-borne pollen, anemophily), from visiting insects or other animals ( biotic pollination), or in rare cases from surrounding water (hydrophily). Stigma can vary from long and sle ...
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Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area.Sayre, April Pulley (1999), ''Africa'', Twenty-First Century Books. . With billion people as of , it accounts for about of the world's human population. Africa's population is the youngest amongst all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4. Despite a wide range of natural resources, Africa is the least wealthy continent per capita and second-least wealthy by total wealth, behind Oceania. Scholars have attributed this to different factors including geography, climate, tribalism, colonialism, the Cold War, neocolonialism, lack of democracy, and corruption. Despite this low concentration of wealth, recent economic expansion and the large and young population make Afr ...
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Oenanthe (plant)
''Oenanthe'', known as water dropworts, oenanthes, water parsleys, and water celeries, are a genus of plants in the family Apiaceae. Most of the species grow in damp ground, such as in marshes or in water. Several of the species are extremely poisonous, the active poison being oenanthotoxin. The most notable of these is ''O. crocata'', which lives in damp, marshy ground, and resembles celery with roots like a bunch of large white carrots. The leaves may be eaten safely by livestock, but the stems, and especially the carbohydrate-rich roots are much more poisonous. Animals familiar with eating the leaves may eat the roots when these are exposed during ditch clearance: one root is sufficient to kill a cow, and human fatalities are also known. It has been referred to as the most poisonous of all British plants, and is considered particularly dangerous because of its similarity to several edible plants. The species '' O. javanica'', commonly known as Chinese celery or Japanese pars ...
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Oenanthe Crocata
''Oenanthe crocata'', hemlock water-dropwort (sometimes known as dead man's fingers) is a flowering plant in the carrot family, native to Europe, North Africa and western Asia. It grows in damp grassland and wet woodland, often along river and stream banks. All parts of the plant are extremely toxic and it has been known to cause human and livestock poisoning. Description Hemlock water-dropwort is a robust hairless perennial growing up to 150 cm tall with hollow, cylindrical, grooved stems up to 3.5 cm across. The stems are often branched. The upper part of the roots include five or more obovoid, pale yellow, fleshy tubers up to 6 cm long, which exude a yellowish oily fluid when cut that stains the skin. The lower leaves are 3–4 times pinnate, triangular, with oval toothed leaflets 10–20 mm long, that are basally tapered to the stalk ( cuneate). The upper leaves are 1–2 pinnate, with narrower lobes and a shorter petiole (leaf stalk). All the leaves ar ...
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Species Plantarum
' (Latin for "The Species of Plants") is a book by Carl Linnaeus, originally published in 1753, which lists every species of plant known at the time, classified into genera. It is the first work to consistently apply binomial names and was the starting point for the naming of plants. Publication ' was published on 1 May 1753 by Laurentius Salvius in Stockholm, in two volumes. A second edition was published in 1762–1763, and a third edition in 1764, although this "scarcely differed" from the second. Further editions were published after Linnaeus' death in 1778, under the direction of Karl Ludwig Willdenow, the director of the Berlin Botanical Garden; the fifth edition (1800) was published in four volumes. Importance ' was the first botanical work to consistently apply the binomial nomenclature system of naming to any large group of organisms (Linnaeus' tenth edition of ' would apply the same technique to animals for the first time in 1758). Prior to this work, a plant spe ...
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Carl Linnaeus
Carl Linnaeus (; 23 May 1707 – 10 January 1778), also known after his ennoblement in 1761 as Carl von Linné Blunt (2004), p. 171. (), was a Swedish botanist, zoologist, taxonomist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy". Many of his writings were in Latin; his name is rendered in Latin as and, after his 1761 ennoblement, as . Linnaeus was born in Råshult, the countryside of Småland, in southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his ' in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he continued to collect an ...
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Bract
In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves. They may be smaller, larger, or of a different color, shape, or texture. Typically, they also look different from the parts of the flower, such as the petals or sepals. A plant having bracts is referred to as bracteate or bracteolate, while one that lacks them is referred to as ebracteate and ebracteolate, without bracts. Variants Some bracts are brightly-coloured and serve the function of attracting pollinators, either together with the perianth or instead of it. Examples of this type of bract include those of ''Euphorbia pulcherrima'' (poinsettia) and ''Bougainvillea'': both of these have large colourful bracts surrounding much smaller, less colourful flowers. In grasses, each floret (flower) is enclosed in a pair of papery bracts, called the lemma (lower bract) and p ...
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Binomial Nomenclature
In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (which may be shortened to just "binomial"), a binomen, name or a scientific name; more informally it is also historically called a Latin name. The first part of the name – the '' generic name'' – identifies the genus to which the species belongs, whereas the second part – the specific name or specific epithet – distinguishes the species within the genus. For example, modern humans belong to the genus ''Homo'' and within this genus to the species ''Homo sapiens''. ''Tyrannosaurus rex'' is likely the most widely known binomial. The ''formal'' introduction of this system of naming species is credit ...
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Peter Artedi
Peter Artedi or Petrus Arctaedius (27 February 170528 September 1735) was a Swedish naturalist who is known as the "father of ichthyology". Artedi was born in Anundsjö in the province of Ångermanland. Intending to become a clergyman, he went after schooling in Harnosand, in 1724, to study theology at Uppsala University, but he turned his attention to medicine and natural history, especially ichthyology, a science that he influenced greatly. In 1728 his countryman Carl Linnaeus arrived in Uppsala, and a lasting friendship was formed between the two from 1729 (as Artedi was away due to the death of his father). In 1732 both left Uppsala, Artedi for England, and Linnaeus for Lappland; before parting they reciprocally bequeathed to each other their manuscripts and books in the event of death. In 1734 Artedi visited England, mentioning a whale in London in November downstream of the London Bridge, and a meeting with Hans Sloane. Artedi left London in summer 1735 and met Linnaeu ...
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Oenanthe Fistulosa Stolons
''Oenanthe'' can refer to: Taxonomy * ''Oenanthe'' (bird), a genus of birds in the family Muscicapidae * ''Oenanthe'' (plant), a genus of plants in the family Apiaceae Persons * Oenanthe of Egypt Oenanthe ( el, Οἰνἀνθη, which means ''wineflower'' - from οἶνος ''wine'' and ἄνθος ''flower''), who flourished in the 3rd century BC and died in 203 BC, was an Ancient Egypt, Egyptian Greeks, Greek noblewoman who, through marr ...
(flourished 3rd century BC), Egyptian Greek noblewoman and the wife of Agathocles {{Disambiguation, genus ...
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Oenanthe Fistulosa Stem Section
''Oenanthe'' can refer to: Taxonomy * ''Oenanthe'' (bird), a genus of birds in the family Muscicapidae * ''Oenanthe'' (plant), a genus of plants in the family Apiaceae Persons * Oenanthe of Egypt Oenanthe ( el, Οἰνἀνθη, which means ''wineflower'' - from οἶνος ''wine'' and ἄνθος ''flower''), who flourished in the 3rd century BC and died in 203 BC, was an Ancient Egypt, Egyptian Greeks, Greek noblewoman who, through marr ...
(flourished 3rd century BC), Egyptian Greek noblewoman and the wife of Agathocles {{Disambiguation, genus ...
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