dcsimg

Description ( Anglèis )

fornì da Flora of Zimbabwe
Shrub, sometimes scrambling. Stems and branches armed with short, broad, slightly curved thorns. Leaves sensitive, twice compound with 6-14 pairs of pinnae with a slender spine on the rhachis between each pair. Flowers in subspherical heads, c. 1 cm in diameter, in the upper leaf axils, mauve or pink. Pods in clusters, covered in golden-brown, bristly hairs.
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Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Mimosa pigra L. Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=126290
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Mark Hyde
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Bart Wursten
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Petra Ballings
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Flora of Zimbabwe

Frequency ( Anglèis )

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Locally common in the Zambezi valley
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Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Mimosa pigra L. Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=126290
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Mark Hyde
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Bart Wursten
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Petra Ballings
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Worldwide distribution ( Anglèis )

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Native to tropical America (Mexico and Cuba to N Peru and NE Argentina) and now a pantropical invasive species.
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Hyde, M.A., Wursten, B.T. and Ballings, P. (2002-2014). Mimosa pigra L. Flora of Zimbabwe website. Accessed 28 August 2014 at http://www.zimbabweflora.co.zw/speciesdata/species.php?species_id=126290
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Mark Hyde
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Bart Wursten
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Flora of Zimbabwe

Comprehensive Description ( Anglèis )

fornì da North American Flora
Mimosa pigra L. Cent.PL 1: 13. 1755
Mimosa asperata h. Syst. Nat. ed. 10, 1312. 1759.
A shrub, up to 2 m. high, the twigs setose, often pubescent, and more or less prickly. Pinnae 7-15 pairs; rachis setose or pubescent, often bearing many stout prickles, sometimes opposite between the piimae; leaflets linear, many pairs, 5-8 mm. long, about 1 mm. wide, pubescent on both sides; peduncles 2-5 cm. long; flowers densely capitate, pink; calyx 2 mm. long, ciliate; corolla 4-lobed; stamens 8; legume narrowly oblong, 3-8 cm. long, 10-12 mm. wide, densely hispid, 10-13-jointed, sessile or short-stipitate.
Type locality: Not cited.
Distribution: Jamaica; Cuba; Guadeloupe to Trinidad; Sinaloa and Veracruz to Panama, Peru and Brazil. Also in the Old World tropics.
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Nathaniel Lord Britton and Joseph Nelson Rose. 1928. (ROSALES); MIMOSACEAE. North American flora. vol 23(1). New York Botanical Garden, New York, NY

Raak-my-nie ( Afrikaans )

fornì da wikipedia AF

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Blomme en blare

Raak-my-nie (Mimosa pigra) is 'n struik wat kan groei tot 'n hoogte van ses meter. Dit het varing-agtige groen blare wat saamvou gedurende die nag of as dit aangeraak word. Groot dorings (5 tot 10cm lang) kom voor op die stam en kleiner doings op die takke. Die struik dra pienk ronde blommetjies (10 tot 20mm in deursnee). Die blompunte produseer olyf-groen saadpeule.

Die Raak-my-nie is inheems in Sentraal-Amerika en Suid-Amerika

Die Raak-my-nie word beskou as 'n onkruid in Suid-Afrika sowel as Australië.

Ander name

  • Engelse naam: giant mimosa, giant sensitiveplant, giant sensitivetree, thorny sensitiveplant
  • Franse naam: amourette riviére
  • Nederlandse naam: kruidjeroermijniet

Sien ook

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Raak-my-nie: Brief Summary ( Afrikaans )

fornì da wikipedia AF
 src= Blomme en blare

Raak-my-nie (Mimosa pigra) is 'n struik wat kan groei tot 'n hoogte van ses meter. Dit het varing-agtige groen blare wat saamvou gedurende die nag of as dit aangeraak word. Groot dorings (5 tot 10cm lang) kom voor op die stam en kleiner doings op die takke. Die struik dra pienk ronde blommetjies (10 tot 20mm in deursnee). Die blompunte produseer olyf-groen saadpeule.

Die Raak-my-nie is inheems in Sentraal-Amerika en Suid-Amerika

Die Raak-my-nie word beskou as 'n onkruid in Suid-Afrika sowel as Australië.

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Susupan gunung ( Bjn )

fornì da wikipedia emerging_languages

Mimosa pigra, nang dikanal sabagai susupan gunung, adalah spesies matan genus Mimosa, dalam kulawarga Fabaceae. Tanaman ngini asli Neotropics, tetapi telah terdaftar sebagai salah satu dari 100 spesies invasif nang pamburuknya wan bantuknya padat, landap, baduri, kada tatambus, tautama di wilayah basah.

Rujukan

  1. ^ The Legume Phylogeny Working Group (LPWG). (2017). "A new subfamily classification of the Leguminosae based on a taxonomically comprehensive phylogeny". Taxon. 66 (1): 44–77. doi:10.12705/661.3.
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Susupan gunung: Brief Summary ( Bjn )

fornì da wikipedia emerging_languages

Mimosa pigra, nang dikanal sabagai susupan gunung, adalah spesies matan genus Mimosa, dalam kulawarga Fabaceae. Tanaman ngini asli Neotropics, tetapi telah terdaftar sebagai salah satu dari 100 spesies invasif nang pamburuknya wan bantuknya padat, landap, baduri, kada tatambus, tautama di wilayah basah.

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Umugeyo (Mimosa pigra) ( kinyarwanda )

fornì da wikipedia emerging_languages
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Umugeyo

Umugeyo (izina ry’ubumenyi mu kilatini Mimosa pigra ) ni ubwoko bw’igiti.

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Mimosa pigra ( Anglèis )

fornì da wikipedia EN

Mimosa pigra, commonly known as the giant sensitive tree (pigra = lazy, slow), is a species of plant of the genus Mimosa, in the family Fabaceae.

The genus Mimosa (Mimosaceae) contains 400–450 species, most of which are native to South America. M. pigra is a woody shrub native to tropical America but which has now become widespread throughout the tropics.[1] It has been listed as one of the world's 100 worst invasive species and forms dense, thorny, impenetrable thickets, particularly in wet areas.

Taxonomy

Mimosa pigra was first identified by Linnaeus,[2] who also named a separate species Mimosa asperata, on the basis of its different leaf morphology. Mimosa pigra was described as having an erect prickle between the pinnae and Mimosa asperata as having prickles in opposite pairs between the pinnae.[3] Further research showed that both leaf forms can occur on the same plant, and consequently both species were united under the name Mimosa asperata asperata, and later on, renamed Mimosa pigra. The scientific name remains Mimosa pigra. In Australia, the common name is mimosa or giant sensitive plant.[1] Other common names include: bashful plant, catclaw mimosa, black mimosa.[4]

Description

Mimosa pigra

Mimosa pigra is a leguminous shrub, which can reach up to 6m in height.[1] The stem is greenish in young plants but becomes woody as the plant matures.[5] It is armed with broad-based prickles up to 7mm long.[1] The leaves are bright green and bipinnate, consisting of a central prickly rachis 20 to 25 cm long with up to 16 pairs of pinnae 5 cm long, each divided into pairs of leaflets 3 to 8 mm long. Leaves are sensitive and fold up when touched and at nightfall.[1][4] Flowers are mauve or pink, in tight, subglobose pedunculate heads 1 cm in diameter, each containing approximately 100 flowers. Each flower head produces a cluster of 10 to 20 seedpods, which then mature and break into segments, each containing an oblong shaped seed. Hairs on the segments allow them to float on water and stick to hair or clothing, hence aiding in dispersal.[4] Ripe seeds are light brown to brown or olive green.[1] Mimosa is hard seeded. Seeds can survive at least 23 years on sandy soils, but seed viability decreases more rapidly on clay soils.[6]

Mimosa pigra can germinate year round if the soil is moist but not flooded. However, most germination takes place at the start and end of the wet season. Growth in a seedling is rapid, and flowering occurs between 4 and 12 months after germination.[5] The process from flower bud to ripe seed takes about five weeks.[1]

Mimosa pigra is closely related to Mimosa pudica (common sensitive plant). It can be distinguished from Mimosa pudica by its large size, large pods (6 to 8 cm long as opposed to 2.5 cm long) and leaves, which have 6 to 16 pairs of pinnae as opposed to 1 to 2 pairs on Mimosa pudica leaves.[1][4]

Distribution and habitat

Mimosa pigra is native to tropical America, where it occurs in a wide belt extending from Mexico through Central America to Northern Argentina.[7] It is now widespread throughout the tropics[1] and is a serious weed in Africa, India, South-East Asia (in Cambodia, it is called ព្រះខ្លបយក្ស /prĕəh kʰlɑːp jĕəʔ/ “giant mimosa,” បន្លាយួន /bɑnlaː juən/ “Vietnamese thorn”, or បន្លាយក្ស /bɑnlaː jĕəʔ/ “giant’s thorn”[8]), Australia and some Pacific Islands.[5]

Mimosa pigra favours wet, tropical climates. It does not appear to grow preferentially in any one soil type, but is most commonly found in moist situations such as floodplains and river banks in soils ranging from black cracking clays throughout sandy clays to coarse siliceous river sand.[5][9]

Invasive species

Mimosa pigra is on the list on the world's 100 worst invasive species in the Invasive Species Specialist Groups Global Invasive Species Database.[10] It has been documented in: Australia, Cambodia, Cuba, Dominican Republic, Eswatini, Ghana, Guinea, Indonesia, Kenya, Malaysia, Mozambique, Papua New Guinea, South Africa, Sri Lanka, Tanzania, Thailand, Uganda, Zambia, United States, and Vietnam.

In Sri Lanka it was first seen in 1996 along a 1 kilometer stretch of banks of the Mahaweli River near Kandy in the Central Province. From there it spread further along the banks and flood plains of the Mahaweli River and the shores of the Victoria and Randenigala Dams. Its seeds are spread by the river flow and by transport of sand mined from the river. It is now also found in abandoned paddy fields, other river and stream banks, and gardens in 4 districts across 3 provinces.[11]

Noxious weed in Australia

In Australia, Mimosa pigra has been declared a noxious weed or given similar status under various weed or quarantine acts. It has been ranked as the tenth most problematic weed and is listed on the Weeds of National Significance. It is currently restricted to the Northern Territory where it infests approximately 80,000 hectares of coastal floodplain.

See also

References

  1. ^ a b c d e f g h i Lonsdale W.M.; Miller I.L.; Forno I.W. (1995). Mimosa pigra. pp. 169–188. In Groves R.H., Sheppard R.C.H., Richardson R.G. The biology of Australian weeds R.G. and F.J. Richardson Publishers, Melbourne, Australia.
  2. ^ Linnaeus C. (1759). Amoenitates. Vol. IV. pp. 274–275. In: Lonsdale W.M., Miller I.L., Forno I.W. (1995). ‘Mimosa pigra L’. In: Groves R.H., Sheppard R.C.H., Richardson R.G. (eds) ‘The biology of Australian weeds’. R.G. and F.J. Richardson Publishers, Melbourne, Australia, pp 169–188.
  3. ^ Linnaeus C. (1759). Systema Naturae. Vol. II. p. 1312. In: Lonsdale W.M., Miller I.L., Forno I.W. (1995). ‘Mimosa pigra L’. In: Groves R.H., Sheppard R.C.H., Richardson R.G. (eds) ‘The biology of Australian weeds’. R.G. and F.J. Richardson Publishers, Melbourne, Australia, pp 169–188.
  4. ^ a b c d Agnote. 466. No. F2. August 2001. Agdex No: 643. ISSN No: 0157-8243. Mimosa or Giant Sensitive Plant (Mimosa pigra). I. L. Miller and S. E. Pickering, updated by C. S. Smith and I.L. Miller Weeds Branch
  5. ^ a b c d "Weed Management Guide: Mimosa (Mimosa pigra)". Australian Government Department of the Environment, Water, Heritage and the Arts. Archived from the original on 2007-10-09. Retrieved 2008-05-10.
  6. ^ Agriculture & Resource Management Council of Australia & New Zealand, Australian & New Zealand Environment & Conservation Council and Forestry Ministers (2000). "Weeds of National Significance Mimosa (mimosa pigra) Strategic Plan". National Weeds Strategy Executive Committee, Launceston. Archived from the original on 2007-10-09. Retrieved 2006-05-13.
  7. ^ Walden, D.; Finlayson, C.M.; van Dam, R. & Storrs, M. (1999). "Information for a risk assessment and management of Mimosa pigra in Tram Chim National Park, Vietnam". In: Proceedings of the EnviroTox'99 International Conference: 160–170. In: Global Invasive Species Database, 2005. ‘Mimosa pigra.’ Available from: http://www.issg.org/database/species/ecology.asp?si=41&fr=1&sts=sss&lang=EN
  8. ^ Tan Boun Suy, “Mimosa pigra L. : Problématique au Cambodge et synthèse bibliographique,” Udaya ឧទ័យ 2, 2001, pp. 67-70; Pauline Dy Phon, វចនានុក្រមរុក្ខជាតិប្រើប្រាស់ក្នុងប្រទេសកម្ពុជា, Dictionnaire des Plantes utilisées au Cambodge, Dictionary of Plants used in Cambodia, ភ្នំពេញ Phnom Penh, បោះពុម្ពលើកទី ១, រោងពុម្ព ហ ធីម អូឡាំពិក (រក្សាសិទ្ធិ៖ អ្នកគ្រូ ឌី ផុន) គ.ស. ២០០០, ទំព័រ ៤៤១, 1st edition: 2000, Imprimerie Olympic Hor Thim (© Pauline Dy Phon), 1er tirage : 2000, Imprimerie Olympic Hor Thim, p. 441; LETI, Mathieu, HUL Sovanmoly, Jean-Gabriel FOUCHÉ, CHENG Sun Kaing, Bruno DAVID, Flore photographique du Cambodge, Paris: Privat, 2013, p. 266.
  9. ^ Lonsdale, W.M. (1988). "Litterfall in an Australian population of Mimosa pigra, an invasive tropical shrub". Journal of Tropical Ecology. 4 (4): 381–392. doi:10.1017/S0266467400003035. Lonsdale W.M., Miller I.L., Forno I.W. (1995). ‘Mimosa pigra L’. In: Groves R.H., Sheppard R.C.H., Richardson R.G. (eds) ‘The biology of Australian weeds’. R.G. and F.J. Richardson Publishers, Melbourne, Australia, pp 169–188.
  10. ^ "100 of the World's Worst Invasive Alien Species". Global Invasive Species Database. Retrieved 25 August 2012.
  11. ^ B. Marambe; L. Amarasinghe; K. Silva; G. Gamage; S. Dissanayake; A. Seneviratne. ”Distribution, biology and management of Mimosa pigra in Sri Lanka”, 2004, at http://www.weeds.org.au/WoNS/mimosa/docs/awc15-17.pdf. Retrieved 21.2.2012.

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Mimosa pigra: Brief Summary ( Anglèis )

fornì da wikipedia EN

Mimosa pigra, commonly known as the giant sensitive tree (pigra = lazy, slow), is a species of plant of the genus Mimosa, in the family Fabaceae.

The genus Mimosa (Mimosaceae) contains 400–450 species, most of which are native to South America. M. pigra is a woody shrub native to tropical America but which has now become widespread throughout the tropics. It has been listed as one of the world's 100 worst invasive species and forms dense, thorny, impenetrable thickets, particularly in wet areas.

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Mimosa pigra ( Spagneul; Castilian )

fornì da wikipedia ES

Mimosa pigra (pigra = loco, lento), también llamada carpinchera, es una especie nativa de los Neotrópicos, del género Mimosa. Puede volverse una especie invasora, y se encuentra incluida en la lista 100 de las especies exóticas invasoras más dañinas del mundo[1][2][3]​ de la Unión Internacional para la Conservación de la Naturaleza, y está documentada en: Australia, Camboya, República Dominicana, Ghana, Guinea, Indonesia, Kenia, Malasia, Papua New Guinea, Sudáfrica, Sri Lanka, Suazilandia, Tanzania, Tailandia, Uganda, Zambia, EE. UU., Vietnam.
Es un arbusto leñoso, originario de la América tropical y extendido ampliamente en los trópicos.[4]​ En Australia se limita actualmente al Territorio del Norte donde están infestadas aproximadamente 80.000 ha de terrenos inundables costeros, por lo que se considera una de las peores plagas del ecosistema australiano.[5]​ Forma densos y espinosos matorrales, impenetrables, especialmente en las zonas húmedas.

Cuando a finales de 1960s se identificaron pequeñas infestaciones de Mimosa pigra a lo largo de los bancos de arena del río Adelaide en el Territorio del Norte, Australia, la "N.T. Agriculture Branch" tomó medidas para exterminarlos asperjando con Tordón, método prometedor para lograr la erradicación; sin embargo el gobierno del Territorio del Norte suspendió el trabajo, permitiendo así que la especie se extendiera ampliamente.

Descripción

Mimosa pigra es un arbusto leguminosa, que puede alcanzar más de 6 m de altura.[4]​ El tallo es verdoso en las plantas jóvenes y se hace leñoso en las adultas.[6]​ Está armada con espinas de más de 7 mm de largo.[4]​ Las hojas, de color verde brillante, son bipinnadas; consisten en un raquis central espinoso de 20 a 25 cm de largo con 16 pares de pinas de 5 cm de largo, cada una dividida en pares de foliolos de 3 a 8 mm de largo. Estas hojas son sensibles, plegándose al tacto y al caer la noche.[4][7]​ La inflorescencia es de color malva a rosa, nace en cabezas apretadas, pedunculadas, subglobosas de 1 cm de diámetro, cada una con alrededor de cien flores. Cada cabeza de flor produce un grupo de 10 a 20 legumbres, que luego maduran y se rompen en segmentos, cada uno contiene una semilla de forma oblonga. La vellosidad localizada en los segmentos les permite flotar en el agua y adherirse al cabello o a la ropa, facilitando así su dispersión.[7]​ Las semillas, que se producen en mucha cantidad, al madurar son de color marrón claro a marrón o verde oliva.[4]​ Pueden sobrevivir por lo menos 23 años en suelos arenosos, pero su viabilidad disminuye más rápidamente en los arcillosos.[5]​ La planta puede germinar durante todo el año si el suelo está húmedo, aunque no inundado. Sin embargo, la mayoría de la germinación tiene lugar al comienzo y al final de la temporada de lluvias. El crecimiento de las plántulas es rápido, y la floración se produce entre 4 y 12 meses después de germinada.[6]​ El proceso desde la yema floral a las semillas maduras se hace en cinco semanas.[4]

Plantas emparentadas

Mimosa pigra está estrechamente relacionada con Mimosa pudica (la mimosa común). Se diferencia de esta por su gran tamaño, grandes vainas (6 a 8 cm de largo, a diferencia de los 2,5 cm de M. pudica) y hojas que tienen 6 a 16 pares de pinas en comparación con 1 a 2 pares en M. pudica.[4][7]Mimosa pudica está también clasificada como maleza en el Territorio del Norte australiano.[7]
Por otra parte, en Australia, Mimosa pigra también se puede confundir con Leucaena leucocephala, con las especies de Aeschynomeme y de Sesbania, aunque se distingue de estas plantas por sus hojas sensibles, espinas y flores color malva.[4][7]

Historia en Australia

Mimosa pigra fue probablemente introducida en Australia en el Jardín Botánico George Brown de Darwin entre 1871 y 1891, tanto de forma accidental en las muestras de semillas o como curiosidad por sus hojas sensibles.[8]​ Su diseminación en torno a Darwin durante los siguientes 60 años no fue particularmente notable, hasta una gran infestación descubierta en 1952 en el río Adelaide, 100 km al sur de Darwin.[4][6]​ Hacia 1968 se había extendido aguas abajo del río Adelaide, hasta el cruce de Marrakai, y alrededor de 1975 había alcanzado el puente de Arnhem Highway.[4]​ Las plantas estaban ya bien establecidas como para extenderse por las llanuras de inundación del río Adelaide. Aunque no eran muy apetitosas, la inmensa población de búfalos de agua que sobrepastoreaban los terrenos inundables, contribuyó en gran medida a su asentamiento. Además, debido la flotabilidad de las semillas la rápida propagación estaba asegurada.[4][5]​ La población aumentó espectacularmente y durante la primera mitad de los años 1980s otros ríos fueron colonizados, pero la tasa de establecimiento se ha ido ralentizando desde finales de los 80.[9]

Distribución

Distribución global

Mimosa pigra es nativa de América tropical, donde se encuentra en un cinturón ancho que se extiende desde México, atraviesa Centroamérica hasta el norte de Argentina.[10]​ A fecha de la primera década de 2000 se ha expandido por los trópicos[4]​ y se considera una seria plaga en África, India, Sudeste Asiático y varias islas del Pacífico.[6]

Distribución en Australia

Desde los 1950s, Mimosa pigra se ubica en varios sistemas de ríos en el Top End. Aparece tanto en el río Victoria al oeste y del río Phelp (en Arnhem Land) al este. Un fuerte surgimiento de mimosas fue descubierto cerca de Proserpina, en el norte de Queensland en febrero de 2001.[6]

Hábitat

Esta especie prospera bien en un clima de húmedo tropical a seco. No parece preferir ningún tipo particular de sustrato, pero se encuentra más comúnmente en los húmedos tales como valles de inundación y riberas de los ríos en los suelos que van desde arcillosos negros agrietables y con arcillas arenosas de arena gruesa silícea.[6][11]

Etimología

La especie fue identificada por primera vez por Linneo,[12]​ quien también nombró a una especie distinta Mimosa asperata, sobre la base de su distinta morfología foliar. Se describió a Mimosa pigra con una espina erecta entre las pinas, mientras que Mimosa asperata tiene espinas en àres opuestos entre las pinas.[13]​ Otras investigaciones adicionales demostraron que ambas formas de la hoja se podían producir en la misma planta, por lo tanto ambas especies se unieron bajo el nombre Mimosa asperata asperata y, posteriormente, se renombró como Mimosa pigra. El nombre científico sigue siendo Mimosa pigra.

Sinonimia
  • Mimosa asperata var. pigra Willd.
  • Mimosa brasiliensis Niederl.
  • Mimosa canescens Willd.
  • Mimosa ciliata Willd.
  • Mimosa hispida Willd.
  • Mimosa polycantha Willd.
  • Mimosa procumbens Sessé & Moc.
  • Mimosa procumbens Schumach. & Thonn[14]

En Australia, su nombre común es "mimosa" o "planta gigante sensible".[4]

Referencias

  1. Lowe S., Browne M., Boudjelas S., De Poorter M. (2000). 100 de las Especies Exóticas Invasoras más dañinas del mundo. Una selección del Global Invasive Species Database. Publicado por el Grupo Especialista de Especies Invasoras (GEEI), un grupo especialista de la Comisión de Supervivencia de Especies (CSE) de la Unión Mundial para la Naturaleza (UICN), 12pp. Primera edición, en inglés, sacada junto con el número 12 de la revista Aliens, Diciembre 2000. Versión traducida y actualizada: Noviembre 2004.
  2. http://www.issg.org/database/species/search.asp?st=100ss&fr=1&sts=sss
  3. http://www.issg.org/database/species/ecology.asp?si=41&fr=1&sts=sss
  4. a b c d e f g h i j k l m Lonsdale W.M., Miller I.L., Forno I.W. (1995). Mimosa pigra. pp. 169-188. En Groves R.H., Sheppard R.C.H., Richardson R.G. The biology of Australian weeds R.G. and F.J. Richardson Publishers, Melbourne, Australia.
  5. a b c Agriculture & Resource Management Council of Australia & New Zealand, Australian & New Zealand Environment & Conservation Council and Forestry Ministers (2000). «Weeds of National Significance Mimosa (mimosa pigra) Strategic Plan.». National Weeds Strategy Executive Committee, Launceston. Archivado desde el original el 9 de octubre de 2007. Consultado el 13 de mayo de 2006.
  6. a b c d e f «Weed Management Guide: Mimosa (Mimosa pigra)». Australian Government Department of the Environment, Water, Heritage and the Arts. Archivado desde el original el 1 de mayo de 2008. Consultado el 10 de mayo de 2008.
  7. a b c d e Error en la cita: Etiqueta no válida; no se ha definido el contenido de las referencias llamadas cit4
  8. Miller I.L. and Lonsdale W.M. (1987). «Early records of ‘’Mimosa pigra’’ in the Northern Territory.». Plant Protection Quarterly 2: 140-142. Lonsdale W.M., Miller I.L., Forno I.W. (1995). ‘Mimosa pigra L.’ En: Groves R.H., Sheppard R.C.H., Richardson R.G. (eds) ‘The biology of Australian weeds’. R.G. and F.J. Richardson Publishers, Melbourne, Australia, pp 169–188.
  9. Lonsdale W.M. (1993). «Rates of spread of an invading species: Mimosa pigra in northern Australia». Journal of Ecology 81: 513-521. doi:10.2307/2261529.
  10. Walden, D., Finlayson, C.M., van Dam, R. and Storrs, M. (1999). «Information for a risk assessment and management of Mimosa pigra in Tram Chim National Park, Vietnam». In: Proceedings of the EnviroTox’99 International Conference: 160-170. In: Global Invasive Species Database, 2005. ‘Mimosa pigra.’ Disponible en: http://www.issg.org/database/species/ecology.asp?si=41&fr=1&sts=sss&lang=EN
  11. Lonsdale, W.M. (1988). «Litterfall in an Australian population of ‘’Mimosa pigra’’, an invasive tropical shrub». Journal of Tropical Ecology 4: 381-392. Lonsdale W.M., Miller I.L., Forno I.W. (1995). ‘Mimosa pigra L’. In: Groves R.H., Sheppard R.C.H., Richardson R.G. (eds) ‘The biology of Australian weeds’. R.G. and F.J. Richardson Publishers, Melbourne, Australia, pp 169–188.
  12. Linnaeus C. (1759). Amoenitates IV. pp. 274-275. In: Lonsdale W.M., Miller I.L., Forno I.W. (1995). ‘Mimosa pigra L’. In: Groves R.H., Sheppard R.C.H., Richardson R.G. (eds) ‘The biology of Australian weeds’. R.G. and F.J. Richardson Publishers, Melbourne, Australia, pp 169–188.
  13. Linnaeus C. (1759). Systema Naturae II. p. 1312. In: Lonsdale W.M., Miller I.L., Forno I.W. (1995). ‘Mimosa pigra L’. In: Groves R.H., Sheppard R.C.H., Richardson R.G. (eds) ‘The biology of Australian weeds’. R.G. and F.J. Richardson Publishers, Melbourne, Australia, pp 169–188.
  14. Mimosa pigra en PlantList

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Mimosa pigra: Brief Summary ( Spagneul; Castilian )

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Mimosa pigra (pigra = loco, lento), también llamada carpinchera, es una especie nativa de los Neotrópicos, del género Mimosa. Puede volverse una especie invasora, y se encuentra incluida en la lista 100 de las especies exóticas invasoras más dañinas del mundo​​​ de la Unión Internacional para la Conservación de la Naturaleza, y está documentada en: Australia, Camboya, República Dominicana, Ghana, Guinea, Indonesia, Kenia, Malasia, Papua New Guinea, Sudáfrica, Sri Lanka, Suazilandia, Tanzania, Tailandia, Uganda, Zambia, EE. UU., Vietnam.
Es un arbusto leñoso, originario de la América tropical y extendido ampliamente en los trópicos.​ En Australia se limita actualmente al Territorio del Norte donde están infestadas aproximadamente 80.000 ha de terrenos inundables costeros, por lo que se considera una de las peores plagas del ecosistema australiano.​ Forma densos y espinosos matorrales, impenetrables, especialmente en las zonas húmedas.

Cuando a finales de 1960s se identificaron pequeñas infestaciones de Mimosa pigra a lo largo de los bancos de arena del río Adelaide en el Territorio del Norte, Australia, la "N.T. Agriculture Branch" tomó medidas para exterminarlos asperjando con Tordón, método prometedor para lograr la erradicación; sin embargo el gobierno del Territorio del Norte suspendió el trabajo, permitiendo así que la especie se extendiera ampliamente.

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Mimosa pigra ( Fransèis )

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Mimosa pigra est une espèce de plantes dicotylédones de la famille des Fabaceae, sous-famille des Mimosoideae, originaire des Amériques.

Ce sont des arbustes épineux à port dressé, très ramifiés, pouvant atteindre une hauteur de 3 à 6 mètres. Introduite dans la plupart des régions tropicales, cette espèce est considérée comme envahissante dans certaines régions, notamment en Australie et dans le sud-est asiatique. Elle est parfois appelé « amourette ».

Taxinomie

Synonymes

Selon The Plant List (28 décembre 2018)[1] :

  • Mimosa asperata var. pigra Willd.
  • Mimosa brasiliensis Niederl.
  • Mimosa canescens Willd.
  • Mimosa hispida Willd.
  • Mimosa pellita Humb. & Bonpl. ex Willd. [2]
  • Mimosa pigra var. pigra

Liste des variétés

Selon Tropicos (28 décembre 2018)[3] (Attention liste brute contenant possiblement des synonymes) :

  • Mimosa pigra var. asperata (L.) Zarucchi, Vincent & Gandhi
  • Mimosa pigra var. berlandieri (A. Gray) B.L. Turner
  • Mimosa pigra var. dehiscens (Barneby) Glazier & Mackinder
  • Mimosa pigra var. pigra

Notes et références

Voir aussi

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Mimosa pigra: Brief Summary ( Fransèis )

fornì da wikipedia FR

Mimosa pigra est une espèce de plantes dicotylédones de la famille des Fabaceae, sous-famille des Mimosoideae, originaire des Amériques.

Ce sont des arbustes épineux à port dressé, très ramifiés, pouvant atteindre une hauteur de 3 à 6 mètres. Introduite dans la plupart des régions tropicales, cette espèce est considérée comme envahissante dans certaines régions, notamment en Australie et dans le sud-est asiatique. Elle est parfois appelé « amourette ».

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Mai dương ( vietnamèis )

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Mai dương hay còn gọi trinh nam, mắt mèo, trinh nữ nâu, trinh nữ đầm lầy (danh pháp hai phần: Mimosa pigra) là một loài thực vật thuộc chi chi Trinh nữ, phân họ Trinh nữ của họ Đậu. Loài này có nguồn gốc vùng nhiệt đới Nam Mỹ, có họ hàng với cây trinh nữ mọc rất nhiều ở Việt Nam.

Đặc điểm

Cây mai dương có thể mọc cao tới 2 m, mọc dày đặc ở vùng đất ẩm ướt. Thân và lá cây có nhiều gai cứng dẫn từ gốc đến ngọn, quả cây có nhiều lông ngứa. Sau 6 tháng thì ra hoa và kết quả. Mỗi lần sinh sản có thể sinh ra khoảng 9.000 hạt mới, và lan đi rất nhanh. Vì có khả năng xâm lấn mạnh, nó có thể hủy hoại các hệ sinh thái cây bụi đã có ở một nơi nào đó.

Có chứa hợp chất gây ngứa: tinh dầu thực vật Urushiol. Loại dầu này rất độc, thường bay trong không khí và đọng lại trên cây cỏ. Chỉ cần một phần tỷ của một gam (nanogram) tinh dầu này là đủ cho một người phải gãi như điên khùng. Các bác sĩ thường ví von rằng muốn làm tất cả mọi người trên trái đất phải gãi, họ chỉ cần không tới 10 gam chất dầu Urushiol.

Dĩ nhiên, phương pháp tốt nhất là mặc quần áo kín đáo, đừng để da thịt tiếp xúc với cây cỏ... Trong trường hợp lỡ bị ngứa rồi, hãy làm theo phương pháp sau:

- Cố đừng gãi, vì càng gãi nó càng lan rộng ra. Nên nhớ chỉ một phần tỷ g tinh dầu là đủ gây ngứa, và chất độc dễ dàng theo móng tay bạn đến làm ngứa những phần da khác; khiến bạn càng gãi, vết ngứa càng lan rộng ra.

- Rửa chỗ ngứa với nước. Đừng dùng khăn, vì chất Urushiol có thể bám vào khăn, làm ngứa những chỗ khác. Rửa cho đến khi hết ngứa, sau đó thoa vào chỗ ngứa một chút alcol (rượu cồn) nếu có.

- Giặt quần áo có dính chất Urushiol với nước, có hoặc không có xà phòng đều được.

Ngoài ra, các chất như xăng, dầu hỏa, acetone, amonia... đều có công dụng làm loãng chất Urushiol. Nên dùng ngón tay thấm các chất này và chà lên vết thương (không nên dùng thường xuyên, vì những chất này đều có hại đối với da thịt).

Tại Việt Nam

Hiện nay, tại Thừa Thiên-Huế và một số vùng khác của Việt Nam, người ta đang cố gắng kìm hãm sự phát triển của nó, để bảo vệ cho các hệ sinh thái hiện tại[1][2][3][4].

Một vài hình ảnh

Chú thích

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Mai dương: Brief Summary ( vietnamèis )

fornì da wikipedia VI

Mai dương hay còn gọi trinh nam, mắt mèo, trinh nữ nâu, trinh nữ đầm lầy (danh pháp hai phần: Mimosa pigra) là một loài thực vật thuộc chi chi Trinh nữ, phân họ Trinh nữ của họ Đậu. Loài này có nguồn gốc vùng nhiệt đới Nam Mỹ, có họ hàng với cây trinh nữ mọc rất nhiều ở Việt Nam.

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刺軸含羞草 ( cinèis )

fornì da wikipedia 中文维基百科
二名法 Mimosa pigra
L., 1755

刺軸含羞草学名Mimosa pigra),又名刺軸含羞木貓爪草,为豆科含羞草屬下的一个种。

描述

木質、多分枝的灌木,成熟時可生長達6公尺高。莖初時是綠色的逐漸變成褐色,葉片為二回羽狀複葉,淡綠色,20至25 公分長,有大約15個對對生基節,夜晚或碰觸時小葉會摺層起來。花為圓形頭狀花序,直經1至2公分,粉紅或淡紫色。頭狀花序是長在2-3公分長的莖上,每片葉腋中有兩個, 花冠有四個裂片、八個粉紅色雄蕊。果莢密被毛,20至25個種子。果實成熟後轉為褐色。種子是褐色或橄欖綠色、長方形、4至6公厘長,2至4公厘寬。

入侵性

刺軸含羞草是具侵略性的,被列為世界百大外来入侵种。尤其是在東南亞澳洲的部份地區,刺軸含羞草經由有浮力的果莢繁殖,果莢可以透過水流長距離傳佈。刺軸含羞草也會傳播到自然牧草地洪泛區生態系統與牧場,把原有生態系統轉換成無生產力的灌木叢林地。在泰國,刺軸含羞草會阻礙稻田的灌溉系統、減少農作物生產,傷害農業生計。 在越南,它侵入特別的生態系統,威脅季節性浸水牧草地的生物多樣性。

資料來源

参考文献

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刺軸含羞草: Brief Summary ( cinèis )

fornì da wikipedia 中文维基百科

刺軸含羞草(学名:Mimosa pigra),又名刺軸含羞木、貓爪草,为豆科含羞草屬下的一个种。

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