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Opuntia Aurantiaca
''Opuntia aurantiaca'', commonly known as tiger-pear, jointed cactus or jointed prickly-pear, is a species of cactus from South America. The species occurs naturally in Argentina, Paraguay and Uruguay and is considered an invasive species in Africa and Australia. It was declared Weed of National Significanceby thin April 2012, and wareported by the Committeeto be the most troublesome of all cactus species in New South Wales and the worst Opuntia species in Queensland. It is currently controlled biologically in Australia using the cochineal insect ''Dactylopius austrinus'', and to a lesser extent by the larvae of two moths, ''Cactoblastis cactorum'' and ''Tucumania tapiacola''. See also *Prickly pears in Australia Prickly pears (genus '' Opuntia'') include a number of plant species that were introduced and have become invasive in Australia. Prickly pears (mostly ''Opuntia stricta'') were imported into Australia in the First Fleet as hosts of cochineal ... References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lindl
John Lindley FRS (5 February 1799 – 1 November 1865) was an English botanist, gardener and orchidologist. Early years Born in Catton, near Norwich, England, John Lindley was one of four children of George and Mary Lindley. George Lindley was a nurseryman and pomologist and ran a commercial nursery garden. Although he had great horticultural knowledge, the undertaking was not profitable and George lived in a state of indebtedness. As a boy he would assist in the garden and also collected wild flowers he found growing in the Norfolk countryside. Lindley was educated at Norwich School. He would have liked to go to university or to buy a commission in the army but the family could not afford either. He became Belgian agent for a London seed merchant in 1815. At this time Lindley became acquainted with the botanist William Jackson Hooker who allowed him to use his botanical library and who introduced him to Sir Joseph Banks who offered him employment as an assistant in his herba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dactylopius Austrinus
''Dactylopius'' is a genus of insect in the superfamily Coccoidea, the scale insects. It is the only genus in the family Dactylopiidae.Van Dam, A. R. and B. May. (2012)A new species of ''Dactylopius'' Costa (''Dactylopius gracilipilus'' sp. nov.) (Hemiptera: Coccoidea: Dactylopiidae) from the Chihuahuan Desert, Texas, U.S.A.''Zootaxa'' 3573: 33–39. These insects are known commonly as cochineals,Ramírez-Puebla, S. T., et al. (2010)Molecular phylogeny of the genus ''Dactylopius'' (Hemiptera: Dactylopiidae) and identification of the symbiotic bacteria. ''Environmental Entomology'' 39(4), 1178-83.Chávez-Moreno, C. K., et al. (2011)Distribution and habitat in Mexico of ''Dactylopius'' Costa (Hemiptera: Dactylopiidae) and their cacti hosts (Cactaceae: Opuntioideae).''Neotropical Entomology'' 40(1), 62-71. a name that also specifically refers to the best-known species, the cochineal (''Dactylopius coccus''). The cochineal is an insect of economic and historical importance as a main so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Uruguay
The flora of Uruguay consists of 2,500 species distributed among 150 native and foreign biological families. Approximately 80% of Uruguay is prairie, with grasses predominating. Uruguay is primarily a grass-growing land, with vegetation that is essentially a continuation of the Argentine Pampas. Forest areas are relatively small. Trees grow in bunches. Forested areas are much smaller than in the pampas, but contain a mix of hardwoods and softwoods, while eucalyptus were imported from Australia. "Ceibo", or '' Erythrina cristagalli'', is the national flower. Herbs Uruguay contains many herbs, ferns, and flowers. Riverine forests Natural forests in Uruguay mainly grow near rivers in the countryside. The native forests are composed of more than 500 native species, including palms. The most abundant are "sauce criollo" ('' Salix humboldtiana''), "sarandí colorado" ('' Cephalanthus glabratus''), "sarandí blanco" ('' Phyllanthus sellowianus'') and "mataojos" ('' Pouteria sal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Paraguay
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms ''gut flora'' or '' skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de Phy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Argentina
The Environment of Argentina is characterised by high biodiversity. Biodiversity Subtropical plants dominate the Gran Chaco in the north, with the ''Dalbergia'' genus of trees well represented by Brazilian rosewood and the quebracho tree; also predominant the wacho white and black algarrobo trees ('' Prosopis alba'' and ''Prosopis nigra''). Savannah-like areas exist in the drier regions nearer the Andes. Aquatic plants thrive in the wetlands of Argentina. In central Argentina the ''humid pampas'' are a true tallgrass prairie ecosystem. The original pampa had virtually no trees; some imported species like the American sycamore or eucalyptus are present along roads or in towns and country estates (''estancias''). The only tree-like plant native to the pampa is the evergreen Ombú. The surface soils of the pampa are a deep black color, primarily mollisols, known commonly as ''humus''. This makes the region one of the most agriculturally productive on Earth; however, this is also res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cacti Of South America
A cactus (, or less commonly, cactus) is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophyllales. The word ''cactus'' derives, through Latin, from the Ancient Greek word (''káktos''), a name originally used by Theophrastus for a spiny plant whose identity is now not certain. Cacti occur in a wide range of shapes and sizes. Although some species live in quite humid environments, most cacti live in habitats subject to at least some drought. Many live in extremely dry environments, even being found in the Atacama Desert, one of the driest places on Earth. Because of this, cacti show many adaptations to conserve water. For example, almost all cacti are succulents, meaning they have thickened, fleshy parts adapted to store water. Unlike many other succulents, the stem is the only part of most cacti where this vital process takes place. Most species of cacti have lost true leaves, retaining only spines, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opuntia
''Opuntia'', commonly called prickly pear or pear cactus, is a genus of flowering plants in the cactus family Cactaceae. Prickly pears are also known as ''tuna'' (fruit), ''sabra'', ''nopal'' (paddle, plural ''nopales'') from the Nahuatl word for the pads, or nostle, from the Nahuatl word for the fruit; or paddle cactus. The genus is named for the Ancient Greek city of Opus, where, according to Theophrastus, an edible plant grew and could be propagated by rooting its leaves. The most common culinary species is the Indian fig opuntia (''O. ficus-indica''). Description ''O. ficus-indica'' is a large, trunk-forming, segmented cactus that may grow to with a crown of over in diameter and a trunk diameter of . Cladodes (large pads) are green to blue-green, bearing few spines up to or may be spineless. Prickly pears typically grow with flat, rounded cladodes (also called platyclades) containing large, smooth, fixed spines and small, hairlike prickles called glochids that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prickly Pears In Australia
Prickly pears (genus '' Opuntia'') include a number of plant species that were introduced and have become invasive in Australia. Prickly pears (mostly ''Opuntia stricta'') were imported into Australia in the First Fleet as hosts of cochineal insects, used in the dye industry. Many of these, especially the tiger pear, quickly became widespread invasive species, rendering of farming land unproductive. The moth '' Cactoblastis cactorum'' from Argentina, whose larvae eat prickly pear, was introduced in 1925 and almost wiped out the prickly pear. This case is often cited as an example of successful biological pest control. A monument to ''Cactoblastis cactorum'' was erected in Dalby, Queensland, commemorating the eradication of the prickly pear in the region. The Cactoblastis Memorial Hall in Boonarga, Queensland, also commemorates the eradication. Species These ''Opuntia'' species are recorded as naturalised in Australia: *''Opuntia aurantiaca'' *'' Opuntia dejecta'' *'' O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tucumania Tapiacola
''Tucumania tapiacola'' is a species of snout moth in the genus '' Tucumania''. It was described by Harrison Gray Dyar Jr. in 1925. It is found in Argentina and has been introduced to Australia and South Africa. The wingspan is 24–34 mm. The forewings are soft grey, with a slightly darker pattern of markings. The hindwings are pearly white, but dusky toward the outer margin. The length of the life cycle is irregular, but both in Argentina and in Australia there are usually two complete generations and a third partial generation annually. The larvae feed on ''Opuntia aurantiaca ''Opuntia aurantiaca'', commonly known as tiger-pear, jointed cactus or jointed prickly-pear, is a species of cactus from South America. The species occurs naturally in Argentina, Paraguay and Uruguay and is considered an invasive species in Afr ...'' and '' Opuntia discolor''. They are solitary and tunnel in the segments of their host plant, often transferring from one joint to another. The lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cactoblastis Cactorum
''Cactoblastis cactorum'', the cactus moth, South American cactus moth or nopal moth, is native to Argentina, Paraguay, Uruguay and southern Brazil. It is one of five species in the genus '' Cactoblastis'' that inhabit South America, where many parasitoids and pathogens control the expansion of the moths' population. This species has been introduced into many areas outside its natural range, including Australia, the Caribbean, and South Africa. In some locations, it has spread uncontrollably and was consequently classified an invasive species.Zimmermann, H., Bloem, S., Klei, H."Biology, History, Threat, Surveillance and Control of the Cactus Moth, ''Cactoblastis cactorum''" April 10, 2004. However, in other places such as Australia, it has gained favor for its role in the biological control of cacti from the genus '' Opuntia'', such as prickly pear. Interactions in native habitat In South America, ''Cactoblastis cactorum'' has many natural predators, including ants and New Worl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queensland
) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_date = Colony of Queensland , established_title2 = Separation from New South Wales , established_date2 = 6 June 1859 , established_title3 = Federation , established_date3 = 1 January 1901 , named_for = Queen Victoria , demonym = , capital = Brisbane , largest_city = capital , coordinates = , admin_center_type = Administration , admin_center = 77 local government areas , leader_title1 = Monarch , leader_name1 = Charles III , leader_title2 = Governor , leader_name2 = Jeannette Young , leader_title3 = Premier , leader_name3 = Annastacia Palaszczuk ( ALP) , legislature = Parliament of Queensland , judiciary = Supreme Court of Queensland , national_representation = Parliament of Australia , national_representation_type ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cactus
A cactus (, or less commonly, cactus) is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophyllales. The word ''cactus'' derives, through Latin, from the Ancient Greek word (''káktos''), a name originally used by Theophrastus for a spiny plant whose identity is now not certain. Cacti occur in a wide range of shapes and sizes. Although some species live in quite humid environments, most cacti live in habitats subject to at least some drought. Many live in extremely dry environments, even being found in the Atacama Desert, one of the driest places on Earth. Because of this, cacti show many adaptations to conserve water. For example, almost all cacti are succulents, meaning they have thickened, fleshy parts adapted to store water. Unlike many other succulents, the stem is the only part of most cacti where this vital process takes place. Most species of cacti have lost true leaves, retaining only spines, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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