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Marabou (weed)
''Dichrostachys cinerea'', known as sicklebush, Bell mimosa, Chinese lantern tree or Kalahari Christmas tree ( South Africa), is a legume of the genus '' Dichrostachys'' in the family Fabaceae. Other common names include omubambanjobe (Tooro Uganda), acacia Saint Domingue (French), el marabú (Cuba), " Mpangara" (Shona), Kalahari-Weihnachtsbaum (German of former South West Africa), kéké or mimosa clochette (Réunion). Etymology The generic name ''Dichrostachys'' means 'two-colored spike', referring to its two-colored inflorescence, from the Ancient Greek ''δί-'' (''di-'', 'twice'), ''χροός'' (''khroos'', 'color'), and ''στάχυς'' (''stakhus'', 'ear of grain'). The specific name ''cinerea'' refers to the greyish hairs of the typical subspecies, from the Latin ''cinereus'' ('ashes'). Distribution It is native to Africa, Indian subcontinent and North Australia and introduced to the Caribbean and parts of Southeast Asia. In Ethiopia, the species is common in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wight
A wight (Old English: ''wiht'') is a mythical sentient being, often undead. In its original use the word ''wight'' described a living human being, but has come to be used in fictional works in the fantasy genre to describe certain immortal beings. An example of this use occurs in William Morris's translation of the ''Grettis Saga'', where '' haugbui'' is translated as " barrow-wight". Wights also feature in J. R. R. Tolkien's world of Middle-earth, especially in ''The Lord of the Rings'', and in George R. R. Martin's novel series ''A Song of Ice and Fire'' and HBO television series ''Game of Thrones''. Since its 1974 inclusion in the RPG ''Dungeons & Dragons'' (D&D), it has become a recurring form of undead in other fantasy games and mods, such as '' Vampire: The Masquerade''. Examples in classic English literature and poetry * Geoffrey Chaucer : ''The Reeve's Tale'', (1387–1400), line 4236: :: "For leynhad swonken al the longe nyght, :: And seyde, 'Fare weel, Malyne, swe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latin
Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the Roman Republic it became the dominant language in the Italian region and subsequently throughout the Roman Empire. Even after the fall of Western Rome, Latin remained the common language of international communication, science, scholarship and academia in Europe until well into the 18th century, when other regional vernaculars (including its own descendants, the Romance languages) supplanted it in common academic and political usage, and it eventually became a dead language in the modern linguistic definition. Latin is a highly inflected language, with three distinct genders (masculine, feminine, and neuter), six or seven noun cases (nominative, accusative, genitive, dative, ablative, and vocative), five declensions, four verb conjuga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deciduous
In the fields of horticulture and Botany, the term ''deciduous'' () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, after flowering; and to the shedding of ripe fruit. The antonym of ''deciduous'' in the botanical sense is evergreen. Generally, the term "deciduous" means "the dropping of a part that is no longer needed or useful" and the "falling away after its purpose is finished". In plants, it is the result of natural processes. "Deciduous" has a similar meaning when referring to animal parts, such as deciduous antlers in deer, deciduous teeth (baby teeth) in some mammals (including humans); or decidua, the uterine lining that sheds off after birth. Botany In botany and horticulture, deciduous plants, including trees, shrubs and herbaceous perennials, are those that lose all of their leaves for part of the year. This process is called abscissio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clay
Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolin, Al2 Si2 O5( OH)4). Clays develop plasticity when wet, due to a molecular film of water surrounding the clay particles, but become hard, brittle and non–plastic upon drying or firing. Most pure clay minerals are white or light-coloured, but natural clays show a variety of colours from impurities, such as a reddish or brownish colour from small amounts of iron oxide. Clay is the oldest known ceramic material. Prehistoric humans discovered the useful properties of clay and used it for making pottery. Some of the earliest pottery shards have been dated to around 14,000 BC, and clay tablets were the first known writing medium. Clay is used in many modern industrial processes, such as paper making, cement production, and chemical filtering. Between one-half and two-thirds of the world's population live or work in buildings made with clay, often ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mustard (color)
Mustard is a dull/dark yellow color that resembles culinary mustard. It is similar to the color Flax. The first recorded use of ''mustard'' as a color name in English was in 1886. In culture * The board game ''Cluedo'' has a mustard-colored pawn representing the character Colonel Mustard. * A mustard-colored belt is awarded to the winner of the Nathan's Hot Dog Eating Contest at Nathan's Famous in Coney Island, New York. * In the bandana code of the gay leather subculture, wearing a mustard-colored bandana means that one is a size queen. access date 2010-03-30 However, the color called "mustard" in the bandana code is lighter than the mustard color shown above. See also * |
Spike (botany)
A raceme ( or ) or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the shoot grows in height, with no predetermined growth limit. Examples of racemes occur on mustard (genus ''Brassica'') and radish (genus ''Raphanus'') plants. Definition A ''raceme'' or ''racemoid'' is an unbranched, indeterminate type of inflorescence bearing pedicellate flowers (flowers having short floral stalks called ''pedicels'') along its axis. In botany, an ''axis'' means a shoot, in this case one bearing the flowers. In indeterminate inflorescence-like racemes, the oldest flowers grow close to the base and new flowers are produced as the shoot grows in height, with no predetermined growth limit. A plant that flowers on a showy raceme may have this reflected in its scientific name, e.g. the species ''Cimicifuga racemosa''. A compou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechanism for the union of sperm with eggs. Flowers may facilitate outcrossing (fusion of sperm and eggs from different individuals in a population) resulting from cross-pollination or allow selfing (fusion of sperm and egg from the same flower) when self-pollination occurs. There are two types of pollination: self-pollination and cross-pollination. Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant. Cross-pollination is when pollen is transferred from the anther of one flower to the stigma of another flower on a different individual of the same species. Self-pollination happens in flowers where the stamen and carpel mature at the same time, and are positi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bipinnate
The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular or irregular, may be smooth or bearing hair, bristles or spines. For more terms describing other aspects of leaves besides their overall morphology see the leaf article. The terms listed here all are supported by technical and professional usage, but they cannot be represented as mandatory or undebatable; readers must use their judgement. Authors often use terms arbitrarily, or coin them to taste, possibly in ignorance of established terms, and it is not always clear whether because of ignorance, or personal preference, or because usages change with time or context, or because of variation between specimens, even specimens from the same plant. For example, whether to call leaves on the same tree "acuminate", "lanceolate", or "linear" could ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thorns, Spines, And Prickles
In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called ''spinose teeth'' or ''spinose apical processes''), are hard, rigid extensions or modifications of leaves, roots, stems or buds with sharp, stiff ends, and generally serve the same function: physically deterring animals from eating the plant material. Description In common language the terms are used more or less interchangeably, but in botanical terms, thorns are derived shoots (so that they may or may not be branched, they may or may not have leaves, and they may or may not arise from a bud),Simpson, M. G. 2010. "Plant Morphology". In: ''Plant Systematics, 2nd. edition''. Elsevier Academic Press. Chapter 9.Judd, Campbell, Kellogg, Stevens, Donoghue. 2007. "Structural and Biochemical Characters". In: ''Plant Systematics, a phylogenetic approach, third edition''. Chapter 4. spines are derived from leaves (either the entire leaf or some part of the leaf that has vascular bundles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dichrostachys Cinerea Bild0885
''Dichrostachys'' is an Old World genus of flowering plants in the family Fabaceae. Their ''Acacia''-like leaves are bi-pinnately compound. Unlike ''Acacia'' their thorns are hardened branchlets rather than modified stipules. They are native from Africa to Australasia, but a centre of diversity is present in Madagascar. Their name is derived from the Greek words ''dis'' (two), ''chroos'' (colour) and ''stachys'' (grain ear or spike), which in combination suggests their bi-colored inflorescences. Species It contains the following species: * ''Dichrostachys akataensis'' Villiers * ''Dichrostachys arborescens'' (Benth.) Villiers * ''Dichrostachys bernieriana'' Baill. * ''Dichrostachys cinerea'' ( L.) Wight & Arn. * '' Dichrostachys dehiscens'' Balf. f. * '' Dichrostachys dumetaria'' Villiers * '' Dichrostachys kirkii'' Benth. * '' Dichrostachys paucifoliolata'' ( Scott-Elliot) Drake * '' Dichrostachys pervilleanus'' (Baill.) Drake * '' Dichrostachys richardiana'' Baill. * '' Dich ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renewable Energy
Renewable energy is energy that is collected from renewable resources that are naturally replenished on a human timescale. It includes sources such as sunlight, wind, the movement of water, and geothermal heat. Although most renewable energy sources are sustainable, some are not. For example, some biomass sources are considered unsustainable at current rates of exploitation. Renewable energy often provides energy for electricity generation to a grid, air and water heating/cooling, and stand-alone power systems. Renewable energy technology projects are typically large-scale, but they are also suited to rural and remote areas and developing countries, where energy is often crucial in human development. Renewable energy is often deployed together with further electrification, which has several benefits: electricity can move heat or objects efficiently, and is clean at the point of consumption. In addition, electrification with renewable energy is more efficient and therefore ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biomass
Biomass is plant-based material used as a fuel for heat or electricity production. It can be in the form of wood, wood residues, energy crops, agricultural residues, and waste from industry, farms, and households. Some people use the terms biomass and biofuel interchangeably, while others consider biofuel to be a ''liquid'' or ''gaseous'' fuel used for transportation, as defined by government authorities in the US and EU. The European Union's Joint Research Centre defines solid biofuel as raw or processed organic matter of biological origin used for energy, such as firewood, wood chips, and wood pellets. In 2019, biomass was used to produce 57 EJ (exajoules) of energy, compared to 190 EJ from crude oil, 168 EJ from coal, 144 EJ from natural gas, 30 EJ from nuclear, 15 EJ from hydro and 13 EJ from wind, solar and geothermal combined. Approximately 86% of modern bioenergy is used for heating applications, with 9% used for transport and 5% for electricity. Most of the global b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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