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flower part of plant
Dictionary
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flower |
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(Elizabeth Morales) |
v.intr.
To decorate with flowers or with a floral pattern.
[Middle English flour, from Old French flor, from Latin flōos, flōor-.]
flow'er·er n.
flow'er·less adj.
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The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2004, 2000 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. |
Directory > General Reference > Dictionary > flower
Thesaurus
flower
noun
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Roget's II: The New Thesaurus, Third Edition by the Editors of the American Heritage® Dictionary Copyright © 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. |
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Encyclopedia
flower, name for the specialized part of a plant containing the reproductive organs, applied to angiosperms only. A flower may be thought of as a modified, short, compact branch bearing lateral appendages. Like twigs, flowers develop from buds, and the basic floral parts (sepal, petal, stamen, and carpel) are in actual fact greatly modified leaves. A typical flower is a concentric arrangement of these parts attached at their base to the receptacle, the tip of the stem. Outermost is a whorl of leaflike green sepals (the calyx) encircling a whorl of usually showy, colored petals (the corolla). Within the corolla the stamens, bearing anther sacs full of pollen, surround the central carpels (ovary). Inside the ovary at the base of the pistil are the ovules, containing the female sex cells; after fertilization of the egg, the ovule becomes the seed and the ovary becomes the fruit. The ovary and stamens are termed essential flower parts, the petals and sepals accessory parts. The number and arrangement of the floral organs vary considerably among the many families and orders of plants and are used in the classification of plants; they also indicate the degree of evolution of the plant. In general, the higher a plant is on the evolutionary scale, the greater is the flower's complexity. The basic number of parts differs from class to class and from family to family; in monocotyledonous plants the parts generally occur in groups of three or in multiples of three, and in dicotyledons more often in groups of two, four, and five. Flowers may be staminate (lack carpels), carpellate, or both; staminate and carpellate flowers may appear on the same plant, on separate plants, or in the same inflorescence. One type of inflorescence, characteristic of the parsley family, is the umbel, in which the tiny florets are borne on separate stalks radiating out from the stem tip. Sometimes the parts serve unusual purposes: the true flowers of the dogwood and the poinsettia are inconspicuous, and the showy “petals” are really modified leaves called bracts. In the jack-in-the-pulpit the florets are clustered on a spike canopied by a large bract, the spathe; the hood of the lady's-slipper, on the other hand, is a modified sterile stamen. Grass inflorescences are tiny spikelets sheathed by protective scales called glumes (the chaff or grain). Flowers have been cultivated and bred for their beauty and their perfume from earliest times and have accumulated a vast and intricate treasury of symbolic associations derived from legend and folklore. Individual flowers have been celebrated in heraldry (rose), in religion (lotus), and in politics (violet) and have become emblems for many countries, including Switzerland (edelweiss), France (fleur-de-lis), Scotland (thistle), Holland (tulip), and the United States (see state flowers).
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The Columbia Electronic Encyclopedia, Sixth Edition Copyright © 2003, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/ |
Science
flower
The part of a plant that produces the seed. It usually contains petals, a pistil, and pollen-bearing stamens.
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The New Dictionary of Cultural Literacy, Third Edition Edited by E.D. Hirsch, Jr., Joseph F. Kett, and James Trefil. Copyright © 2002 by Houghton Mifflin Company. Published by Houghton Mifflin. All rights reserved. |
Directory > Science & Tech > Science > flower
Medical
flow·ers (flou'ə?rz)
pl.n.
A fine powder produced by condensation or sublimation of a compound.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. |
Directory > Medical > Medical Dictionary > flower
Food Glossary
Flowers
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edible Flowers that are used as a garnish or as an integral part of a dish, such as a salad. Not all flowers are edible. Those that are must usually be purchased from specialty produce markets or supermarkets that carry gourmet produce. They can be stored, tightly wrapped, in the refrigerator up to a week. Flowers that have been sprayed with pesticides (such as those found at florists') should never be eaten. Some of the more popular edible flowers are: the peppery-flavored nasturtiums; chive blossoms, which taste like a mild, sweet onion; pansies and violets, both with a flavor reminiscent of grapes; and perfumy, sweet roses. Other edible flowers include: almond, apple, borage, chamomile, lavender, lemon, lovage, mimosa, orange, peach, plum and squash blossoms, chrysanthemums, daisies, geraniums, jasmine, geraniums, marigolds, and violets. Edible flowers may be used culinarily in a variety of ways. They make colorful, striking garnishes for drinks as well as food-for everything from salads to soups to desserts. Some of the larger flowers such as squash blossoms can be stuffed and deep-fried. |
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Directory > Food & Nutrition > Food Glossary > flower
WordNet
Note: click on a word meaning below to see its connections and related words.
The noun flower has 3 meanings:
Meaning #1: a plant cultivated for its blooms or blossoms
Meaning #2: reproductive organ of angiosperm plants especially one having showy or colorful parts
Synonyms: bloom, blossom
Meaning #3: the period of greatest prosperity or productivity
Synonyms: prime, peak, heyday, bloom, blossom, efflorescence, flush
The verb flower has one meaning:
Meaning #1: produce or yield flowers
Synonyms: bloom, blossom
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WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. |
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Contents
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Wikipedia
@import url(http://www.answers.com/main/content/wp/css/common.css); @import url(http://www.answers.com/main/content/wp/css/gnwp.css);
flower
A flower is the reproductive organ of those plants classified as angiosperms (flowering plants; Division Magnoliophyta). The function of a flower is to produce seeds through sexual reproduction. For the higher plants, seeds are the next generation, and serve as the primary means by which individuals of a species are dispersed across the landscape. After fertilization, a flower develops into a fruit containing the seed(s).
Flower anatomy
A flower is regarded a modified stem (Eames, 1961) with shortened internodes and bearing, at its nodes, structures that may be highly modified leaves. In essence, a flower structure forms on a modified shoot or axis with an apical meristem that does not grow continuously (growth is determinate). The stem is called a pedicel, the end of which is the torus or receptacle. The parts of a flower are arranged in whorls on the torus. The four main parts or whorls (starting from the base of the flower or lowest node and working upwards) are as follows:
In the majority of species, individual flowers have both pistils and stamens as described above. These flowers are described by botanists as being perfect, bisexual, or hermaphrodite. However, in some species of plants the flowers are imperfect or unisexual: having only either male (stamens) or female (pistil) parts. In the latter case, if an individual plant is either male or female the species is regarded as dioecious. However, where unisexual male and female flowers appear on the same plant, the species is considered monoecious.
Some flowers with both stamens and a pistil are capable of self-fertilization, which does increase the chance of producing seeds but limits genetic variation. The extreme case of self-fertilization occurs in flowers that always self-fertilize, such as the common dandelion. Conversely, many species of plants have ways of preventing self-fertilization. Unisexual male and female flowers on the same plant may not appear at the same time, or pollen from the same plant may be incapable of fertilizing its ovules. The latter flower types, which have chemical barriers to their own pollen, are referred to as self-sterile or self-incompatible. (See also: Plant sexuality)
Close-up of a Day lily flower showing six stamens and the stigma and style of a pistil
Additional discussions on floral modifications from the basic plan are presented in the articles on each of the basic parts of the flower. In those species that have more than one flower on an axis, the collection of flowers is termed an inflorescence. In this sense, care must be exercised in considering what is a flower. In botanical terminology, a single daisy or sunflower for example, is not a flower but a flower head—an inflorescence comprised of numerous small flowers (sometimes called florets). Each small flower may be anatomically as described above.
Floral formula
A floral formula is a way to represent the structure of a flower using specific letters, numbers, and symbols. Typically, a general formula will be used to represent the flower structure of a plant family rather than a particular species. The following representations are used:
Ca = calyx (sepal whorl; e.g. Ca5 = 5 sepals)
Co = corolla (petal whorl; e.g., Co3(x) = petals some multiple of three )
Z = add if zygomorphic (e.g., CoZ6 = zygomorphic with 6 petals)
A = androecium (whorl of stamens; e.g., A∞8 = many stamens)
G = gynoecium (carpel or carpels; e.g., G1 = monocarpous)
x - to represent a "variable number"
∞8 - to represent "many"
A floral formula would appear something like this:
Ca5Co5A10-∞8G1
Several other symbols are used that will have to await drawings to illustrate here (see [1] (http://botit.botany.wisc.edu/courses/systematics/key.html)).
Flower function
Grains of pollen on stigma of a lily
The function of a flower is to mediate the union of male and female gametes. The process is termed pollination. Many flowers are dependent upon the wind to move pollen between flowers of the same species. Others rely on animals (especially insects) to accomplish this feat. The period of time during which this process can take place (the flower is fully expanded and functional) is called anthesis.
Many flowers in nature have evolved to attract animals to pollinate the flower, the movements of the pollinating agent contributing to the opportunity for genetic recombinations within a dispersed plant population. Flowers that are insect pollinated are called entomophilous (literally "insect loving"). Flowers commonly have nectaries on their various parts that attract these animals. Bees and birds are common pollinators: both have color vision, thus selecting for "colorful" flowers. Some flowers have patterns, called nectar guides, that are evident in the ultraviolet range, visible to bees but not to humans. Flowers also attract pollinators by scent. In any case, pollinators are attracted to the plant, perhaps in search of nectar, which they eat. The arrangement of the stamens insures that pollen grains are transferred to the bodies of the pollinator. In gathering nectar from many flowers of the same species, the pollinators transfer pollen between all of the flowers it visits.
Flower scent is not always pleasant to our nose. Some plants, such as Rafflesia, the titan arum, and the North American pawpaw (Asimina triloba) are pollinated by flies, so produce a scent imitating rotting meat.
Other flowers are pollinated by the wind, and the flowers of these species (for example, grasses) have no need to attract pollinators and therefore tend not to be "showy". Wind pollinated flowers are referred to as anemophilous. Whereas the pollen of entomophilous flowers tends to be large grained, sticky, and contain significant protein (another "reward" for pollinators), Anemophilous flower pollen is usually small grained, very light, and of little nutritional value to insects, though it may still be gathered, in times of dearth. Honeybees and bumblebees actively gather anemophilous corn (maize) pollen, though it is of little value to them.
There is much confusion about the role of flowers in allergies. For example the showy and entomophilous goldenrod (Solidago) is frequently blamed for respiratory allergies, of which it is innocent, since its pollen cannot be airborne. Instead the allergen is usually the pollen of the contemporary bloom of anemophilous ragweed (Ambrosia) which can drift for many kilometers.
Flowers in gardening and horticulture
Main and related articles at: Gardening, Horticulture, List of flowers, and Flower album
Flowers in the arts
The great variety of delicate and beautiful flowers has inspired the works of many poets.
Ah, Sun-flower weary of time,
Who countest the steps of the Sun,
Seeking after that sweet golden clime
Where the traveller's journey is done:
Where the Youth pined away with desire,
And the pale Virgin shrouded in snow
Arise from their graves, and aspire
Where my Sun-flower wishes to go.
Flowers in everyday life
In modern times, people have sought ways to cultivate, buy, wear, or just be around flowers and blooming plants, partly because of their agreeable smell. Around the world, florists sell flowers for a wide range of events and functions that, cumulatively, encompass one's lifetime:
Flowers as symbols
Many flowers have important symbolic meanings in Western culture. Some of the more common examples include:
References and external links
A flower in a cryptic crossword could be pronounced flo-er and refer to a stream or river.
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Flower". |
Directory > General Reference > Wikipedia > flower
Translations
Translations for: Flower
Nederlands (Dutch)
bloem, het beste, poeder, schuim van vergisting, bloemrijk taalgebruik, bloei, bloem-, bloemen-, bloeien, doen bloeien, met bloemen versieren, ontwikkelen
Français (French)
fleur, floraison, fleurir, s'épanouir, à fleurs, fleuri
Deutsch (German)
n. - Blume, Blüte
v. - blühen
Ε?λ?λ?η?ν?ι?κ?ή? (Greek)
n. ά?ν?θ?ο?ς?, λ?ο?υ?λ?ο?ύ?δdι?, ά?ν?θ?ι?σsη? v. αaν?θ?ώ?, αaν?θ?ί?ζ?ω?, λ?ο?υ?λ?ο?υ?δdι?ά?ζ?ω?, λ?ο?υ?λ?ο?υ?δdί?ζ?ω? adj. τtω?ν? λ?ο?υ?λ?ο?υ?δdι?ώ?ν?
Italiano (Italian)
fiorire, crescere, fiore, floreale
Português (Portuguese)
n. - flor (f)
v. - florescer
Р?у?с?с?к?и?й? (Russian)
ц?в?е?с?т?и?, ц?в?е?т?о?к?, к?р?а?с?а?, р?а?с?ц?в?е?т?
Español (Spanish)
n. - flor, floración, florecimiento
v. intr. - florecer, estar en cierne, estar en flor
v. tr. - florear, decorar con flores
Svenska (Swedish)
n. - blomma, blomning, aromen (bildl.), (retorisk) blomma
v. - blomma, blomstra (bildl.), pryda med blommor, driva i blom
adj. - blom-, blomster-
中?国?琣? (Simplified Chinese)
n. - 絏?, 盛?时?, 精?华?
v. intr. - 开?絏?, 成?熟?, 旺?盛?
v. tr. - 用?絏?眻?暐?, 使?开?絏?
中?國?疏? (Traditional Chinese)
n. - 絏?, 盛?時?, 精?簑?
v. intr. - 橵?絏?, 成?熟?, 旺?盛?
v. tr. - 用?絏?眣?朂?, 使?橵?絏?
日?本?畢? (Japanese)
n. - 絏?, 粷?絏?, 橵?絏?, 満?橵?, 最?も?優?れ?た?漘?分?, 最?盛?期?, 梮?春?
v. - 絏?が?咲?く?, 絏?橵?く?, 栄?え?る?
ا?ل?ع?ر?ب?ي?ه? (Arabic)
?(ا?ل?ا?س?م?) و?ر?د?ة? (ف?ع?ل?) ي?ز?ه?ر? , ي?ن?و?ر? (ص?ف?ه?)?
ע?ב?ר?י?ת?? (Hebrew)
n. - ?פ?ר?ח?, צ?מ?ח? ה?מ?ט?ו?פ?ח? ב?ש?ל? פ?ר?ח?י?ו?, פ?א?ר?, מ?י?ט?ב??
v. intr. - ?פ?ר?ח??
v. tr. - ?ג?ר?ם? א?ו? א?י?פ?ש?ר? ל?צ?מ?ח? ל?פ?ר?ו?ח?, פ?ר?ח?, ק?י?ש?ט? ב?פ?ר?ח?י?ם?, צ?מ?ח? ה?מ?ט?ו?פ?ח? ב?ש?ל? פ?ר?ח?י?ו?, פ?א?ר?, מ?י?ט?ב??
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