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Pelargonium Citrosum
''Pelargonium'' 'citrosum' (often sold by the invalid binomial name ''Pelargonium citrosum'' ) is a perennial subshrub with fragrant leaves that are reminiscent of citronella. ''P.'' 'citrosum' is marketed as "mosquito plant" or "citrosa geranium" in stores in the United States and Canada, even though research from the University of Guelph indicates the plant is ineffective against ''Aedes aegypti'' mosquitos. "Not only was the plant ineffective at protecting humans against Aedes mosquito bites, the mosquitoes were seen landing and resting on the citrosa plant on a regular basis." It is claimed that ''P.'' 'citrosum' may be a genetic bonding of the African geranium with genes from Cymbopogon grass, but that claim has also been proven false. The plant appears to be a cultivar of ''Pelargonium graveolens ''Pelargonium graveolens'' is a ''Pelargonium'' species native to the Cape Provinces and the Northern Provinces of South Africa, Zimbabwe and Mozambique. Etymology ''Pelar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Binomial Name
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subshrub
A subshrub (Latin ''suffrutex'') or dwarf shrub is a short shrub, and is a woody plant. Prostrate shrub is a related term. "Subshrub" is often used interchangeably with "bush".Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and Accent; Published by Gerald Duckworth & Co. London, 4th ed 1928 Because the criteria are matters of degree (normally of height) rather than of kind, the definition of a subshrub is not sharply distinguishable from that of a shrub; examples of reasons for describing plants as subshrubs include ground-hugging stems or low growth habit. Subshrubs may be largely herbaceous though still classified as woody, with overwintering perennial woody growth much lower-growing than deciduous summer growth. Some plants described as subshrubs are only weakly woody and some persist for only for a few years; others however, such as ''Oldenburgia paradoxa'' live indefinitely (though is still vulnerable to external effects), rooted in rocky cracks. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citronella Oil
Citronella oil Citronella oil is an essential oil obtained from the leaves and stems of different species of '' Cymbopogon'' (lemongrass). The oil is used extensively as a source of perfumery chemicals such as citronellal, citronellol, and geraniol. These chemicals find extensive use in soap, candles and incense, perfumery, cosmetic, and flavouring industries throughout the world. Citronella oil is also a plant-based insect repellent and has been registered for this use in the United States since 1948. The United States Environmental Protection Agency considers oil of citronella as a biopesticide with a non-toxic mode of action. Citronella oil has strong antifungal properties. Types Citronella oil is classified in trade into two chemotypes:Chang, Yu Shyun, 2007, ''8 Map species from Malaysia for ICS,'' Forest Research Institute Malaysia, Workshop on NFP, 28–29 May 2007, Nanchang, PR China Ceylon type * CAS: 89998-15-2 * CAS: 8000-29-1 * EINECS: 289-753-6 * FEMA: 2308 * Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Horticultural Society
The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr (North Yorkshire), Rosemoor (Devon) and Bridgewater (Greater Manchester); flower shows including the Chelsea Flower Show, Hampton Court Palace Flower Show, Tatton Park Flower Show and Cardiff Flower Show; community gardening schemes; Britain in Bloom and a vast educational programme. It also supports training for professional and amateur gardeners. the president was Keith Weed and the director general was Sue Biggs CBE. History Founders The creation of a British horticultural society was suggested by John Wedgwood (son of Josiah Wedgwood) in 1800. His aims were fairly modest: he wanted to hold regular meetings, allowing the society's members the opportunity to present papers on their horticultural activities and discoveries, to enc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aedes Aegypti
''Aedes aegypti'', the yellow fever mosquito, is a mosquito that can spread dengue fever, chikungunya, Zika fever, Mayaro and yellow fever viruses, and other disease agents. The mosquito can be recognized by black and white markings on its legs and a marking in the form of a lyre on the upper surface of its thorax. This mosquito originated in Africa, but is now found in tropical, subtropical and temperate regions throughout the world. Biology ''Aedes aegypti'' is a long, dark mosquito which can be recognized by white markings on its legs and a marking in the form of a lyre on the upper surface of its thorax. Females are larger than males. Microscopically females possess small palps tipped with silver or white scales, and their antennae have sparse short hairs, whereas those of males are feathery. ''Aedes aegypti'' can be mixed up with Aedes albopictus without a magnifying glass: The latter have a white stripe on the top of the mid thorax. Males live off fruit and only the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
African Geranium
African or Africans may refer to: * Anything from or pertaining to the continent of Africa: ** People who are native to Africa, descendants of natives of Africa, or individuals who trace their ancestry to indigenous inhabitants of Africa *** Ethnic groups of Africa *** Demographics of Africa *** African diaspora ** African, an adjective referring to something of, from, or related to the African Union ** Citizenship of the African Union ** Demographics of the African Union **Africanfuturism ** African art ** *** African jazz (other) ** African cuisine ** African culture ** African languages ** African music ** African Union ** African lion, a lion population in Africa Books and radio * ''The African'' (essay), a story by French author J. M. G. Le Clézio * ''The African'' (Conton novel), a novel by William Farquhar Conton * ''The African'' (Courlander novel), a novel by Harold Courlander * ''The Africans'' (radio program) Music * "African", a song by Peter Tosh f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cymbopogon
''Cymbopogon'', also known as lemongrass, barbed wire grass, silky heads, Cochin grass, Malabar grass, oily heads, citronella grass or fever grass, is a genus of Asian, African, Australian, and tropical island plants in the grass family. Some species (particularly ''Cymbopogon citratus'') are commonly cultivated as culinary and medicinal herbs because of their scent, resembling that of lemons (''Citrus limon''). The name cymbopogon derives from the Greek words (, 'boat') and (, 'beard') "which mean hatin most species, the hairy spikelets project from boat-shaped spathes." Lemongrass and its oil are believed to possess therapeutic properties. Uses Citronella grass (''Cymbopogon nardus'' and '' Cymbopogon winterianus'') grow to about and have magenta-colored base stems. These species are used for the production of citronella oil, which is used in soaps, as an insect repellent (especially mosquitoes and houseflies) in insect sprays and candles, and aromatherapy. The principal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelargonium Graveolens
''Pelargonium graveolens'' is a ''Pelargonium'' species native to the Cape Provinces and the Northern Provinces of South Africa, Zimbabwe and Mozambique. Etymology ''Pelargonium'' comes from the Greek πελαργός ''pelargos'' which means stork. Another name for pelargoniums is stork's-bills due to the shape of their fruit. The specific epithet ''graveolens'' refers to the strong-smelling leaves. Description ''Pelargonium graveolens'' is an erect, multi-branched shrub, that grows up to 1.5 m and has a spread of 1 m. The leaves are deeply incised, velvety and soft to the touch (due to glandular hairs). The flowers vary from pale pink to almost white and the plant flowers from August to January. The leaves may be strongly rose-scented, although the leaf shape and scent vary. Some plants are very strongly scented and others have little or no scent. Some leaves are deeply incised and others less so, being slightly lobed like '' P. capitatum''. Common names and syn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mosquito Plant '' (Common vervain)
{{Plant common name ...
Mosquito plant is a common name for several plants and may refer to: * ''Azolla'' species (duckweed ferns) * '' Agastache cana'' (Texas hummingbird mint) * '' Pelargonium 'citrosum''' (Citrosa geranium, citronella plant) * ''Verbena officinalis ''Verbena officinalis'', the common vervain or common verbena, is a perennial herb native to Europe. It grows up to 70 cm high, with an upright habitus. The lobed leaves are toothed, and the delicate spikes hold clusters of two-lipped mauv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cymbopogon
''Cymbopogon'', also known as lemongrass, barbed wire grass, silky heads, Cochin grass, Malabar grass, oily heads, citronella grass or fever grass, is a genus of Asian, African, Australian, and tropical island plants in the grass family. Some species (particularly ''Cymbopogon citratus'') are commonly cultivated as culinary and medicinal herbs because of their scent, resembling that of lemons (''Citrus limon''). The name cymbopogon derives from the Greek words (, 'boat') and (, 'beard') "which mean hatin most species, the hairy spikelets project from boat-shaped spathes." Lemongrass and its oil are believed to possess therapeutic properties. Uses Citronella grass (''Cymbopogon nardus'' and '' Cymbopogon winterianus'') grow to about and have magenta-colored base stems. These species are used for the production of citronella oil, which is used in soaps, as an insect repellent (especially mosquitoes and houseflies) in insect sprays and candles, and aromatherapy. The principal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Citronella Mucronata
''Citronella mucronata'', the huillipatagua () or Chilean citronella tree, is an evergreen tree native to Chile, it occurs from 30 to 41° South latitude. In Chile, the tree grows from 500 to 2000 meters above sea-level in low altitude interior valleys and coastal mountains.http://www.chileflora.com/Florachilena/FloraEnglish/HighResPages/EH0290.htm Description It reaches up to 10 m (30 ft) and 1 m (3 ft) in diameter. The bark is dark gray and rough. The leaves are alternate, leathery, the edge is entire or toothed, ovate or oblong with an acute apex (tip) which ends in a mucro (sharp point). The leaves are about 4,5-6 long and 2,5–4 cm and wide, with domatia in the axils of the side veins, and the veins are yellow, the leaves are glossy green above, and paler below. Small petioles. The flowers are hermaphrodite and whitish yellow and arranged in terminal panicles 4–8 cm long. The calyx is made up by 5 sepals, the corolla has 5 free petals. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
