Western Australia Department of Agriculture (AgWest) Hawaiian Ecosystems at Risk project (HEAR) Global Compendium of Weeds (GCW) Global Compendium of Weeds
Asystasia gangetica (Acanthaceae)


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Presented here is summary information about the species Asystasia gangetica from the Global Compendium of Weeds, and citations of references to this species as a weed. Definitions of terms are available in the GCW introduction View info about Adobe Acrobat PDF format. For further information--or to report corrections or concerns--contact webmaster@hear.org.


Synonyms/other Latin names:see GRIN ]

Status(es) (compiled for below "Data sources"): agricultural weed, cultivation escape, environmental weed, naturalised, weed [for definitions, see the GCW introduction View info about Adobe Acrobat PDF format.]

Origin (native to where): Africa/Tropical Asia, India, Malaysia, Africa, "India, Sri Lanka", Hsu TW, Chiang TY, Peng JJ (2005) Asystasia gangetica (l.) T. Anderson subsp. micrantha (Nees) Ensermu (Acanthaceae), a newly naturalized plant in Taiwan. Taiwania, 50(2), 117-122., African tropics & subtropics



Data sources:

Actual and Prospective Weeds. Pacific Islands Ecosystems at Risk Project; http://www.hear.org/pier/ [ online info ]

Importation of Fresh Bananas from the Philippines Technical Information Paper May 2002. BIOSECURITY AUSTRALIA. (Tables 16 & 17 (Weeds))

Asystasia gangetica subsp. micrantha, a newly naturalized plant in TaiwanAsystasia gangetica subsp. micrantha (Acanthaceae) was found naturalized in southern Taiwan. This taxon represents a new record for the genus and the species on the island. The genus includes approximately 70 species in the world, distributed in Africa, India, mainland China and Australia. This plant is a perennial herb, erect, 15 to 60 cm tall. The leaves are opposite, ovate, 4-9 cm long, 2-5 cm wide. The corolla is zygomorphic, about 1-1.3 cm in diameter, white, bell-shaped. Plant nodes form roots when they enter in contact with moist soil, ultimately forming mats or sprawling mass stems. Given such asexual propagation and lack of natural predators, these plants are highly invasive and are considered as weeds. The introduction of this weed has caused serious disturbance to natural habitats, particularly in Malaysia, Indonesia and the Pacific islands. For more information on this plant: http://www.hear.org/pier/species/asystasia_gangetica.htm (naturalised) [ online info ]

Backer, C.A. (1973) Atlas of 220 Weeds of sugarcane fields in Java. A reprint of an original publicaton from the early 1930s.

Biological Diversity of the Guianas (BDG) Guyana; Surinam; French Guiana. The Checklist of the Plants of the Guianas; 2nd Edition (edited by J. Boggan; V. Funk; C. Kelloff; M. Hoff; G. Cremers; & C. Feuillet; 1997) was produced as a cooperative project between the Biological Diversity of the Guianas Program (Smithsonian Institution; Washington; DC USA) and the ORSTOM Herbarium (Cayenne; French Guiana); under the auspices of the Centre for the Study of Biological Diversity (University of Guyana; Georgetown; Guyana). http://www.nmnh.si.edu/biodiversity/checklst.htm weed? [ online info ]

Eduardo Chacón and Guido Saborío-R (2003) LISTA DE ESPECIES DE PLANTAS INTRODUCIDAS EN COSTA RICA. Asociación para la Conservación y el Estudio de la Biodiversidad (ACEBIO) [edchacon@gmail.com & gsaborio@gmail.com.]

Faith T. Campbell; American Lands Alliance; "Worst" Invasive Plant Species in the conterminous United States: weed

Staples, George W., Derral Herbst & Clyde T. Imada (2000). Survey of Invasive or Potentially Invasive Cultivated Plants in Hawaii. A Special Publication of the Records of the Hawaii Biological Survey for 1999. Honolulu, Hawaii.

Germplasm Resources Information Network G.R.I.N. GRIN (naturalised, weed)

Holm, L. G., Pancho, J. V., Herberger, J. P. and Plucknett, D. L. (1979). A Geographical Atlas of World Weeds. John Wiley and Sons NewYork, USA

HortGuard and GrainGuard Initial Threat List Compilations

Introduced (Naturalised) Species to the United States [USDA, NRCS 1999. The PLANTS database. National Plant Data Center, Baton Rouge, LA 70874-4490 USA. ]

Introduced plants in Galapagos. Introduced Species Registered in the Charles Darwin Research Station Herbarium as present in Galapagos (616 species, not including questionably native species), November 2004.

Joe Garofalo, John McLaughlin, and Charles Yurgalevitch (2000) GROUNDCOVERS FOR SHADE: SOUTH FLORIDA. Miami-Dade County/University of Florida, Cooperative Extension Service.

John Hosking, NSW Department of Agriculture, Weed Database 30 April 2003 (agricultural weed, naturalised)

Komolafe, D.A. (1976). Weed Problems in Tree Crops in Nigeria. PANS 22(2): 250-276

Liogier, H.A. (2000). Flora of Puerto Rico and Adjacent Islands. A Systematic Synopsis. (2nd Edition). Universidad de Puerto Rico

List of Florida's Most Invasive Species - Florida Exotic Pest Plant Council.

List of exotic plants that have naturalised within the Wet Tropics Bioregion from Werren, G. (2001) 'Environmental Weeds of the Wet Tropics Bioregion: Risk Assessment & Priority Ranking'. A report prepared for the Wet Tropics Management Authority, Cairns [Source of data: Queensland Herbarium records (HERBRECS) to November 2000; emended by concatenating conspecific subspecies/varieties, and inserting additional species otherwise known to have naturalised within the region]

Mangoensoekardjo, S. and Pancho, J.V. (1975). Rerumputan Di Kebun Karet, Kelapa, Sawit, Coklat, The Dan Padi Serta cara Pemberantasannya. [Current Status of weed problems in plantation crops]. Bulletin B.P.P.M. Vol.6 No 1 Maret.

Motooka, P., Castro, l., Nelson, D., Nagai, G. and Ching, L. (2003) Weeds of Hawai'I's Pastures and Natural Areas. An Identification and Management Guide. College of Tropical Agriculture and Human Resources, University of Hawai'I at Manoa.

Plant Threats to Pacific Ecosystems. A product of the Pacific Island Ecosystems at Risk project (PIER). This table lists all species that are profiled on PIER. It includes those of environmental concern (including those that are probably of threat only to islands with high elevations) as well as agricultural and ruderal weeds. Jim Space, PEIR Co-ordinator.

Plants Naturalised in Hawai'i. Bishop Musem, Oahu. DISCLAIMER: Be it known to all who use this web resource, that this is NOT intended to represent a complete, definitive, or authoritative checklist of the flora and fauna of the Hawaiian Islands. This is a Beta-Test site that makes available online a copy of the taxonomic database currently used by the Bishop Museum Botany collection for its collections databases. Some groups in this list have been thoroughly scrutinized and do, in fact, represent an essentially complete checklist for the Hawaiian Islands. Other groups, however, are NOT complete, and only represent an unverified listing of what happens to be in the Bishop Museum specimen collection database.

Richardson, F.J., Richardson, R.G. and Shepherd, R.C.H. (2006). Weeds of the South-East. An identification guide for Australia. R.G. & F.J. Richardson. Meredith, Victoria. ISBN 0958743932, 438 pages. (weed)

Wagner, W.L., Herbst, D.R. and Lorence, D.H. (2005). Naturalised Flora of the Hawaiian Islands website. (04/25/2006)




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This page was created on 13 September 2007 by PT, and was last updated on 04 October 2007 by PT based on data from Rod Randall's Global Compendium of Weeds database dated 24 January 2007. Valid HTML 4.01!