Hydrilla verticillata
(Hydrocharitaceae)
Florida elodea, Indian stargrass, hydrilla, water thyme, water weed
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Hydrilla verticillata
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| HEAR home > species info > plants > Hydrilla verticillata (Hydrocharitaceae) |
| Species description or overview | Taxonomy & nomenclature | Impacts | Control methods | Images | Distribution |
| Cited as invasive | Cited as invasive (on a list) | Books | Full-text articles | Experts | Other resources |
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A message from Dr. David Duffy, Pacific Cooperative Studies Unit (PCSU), University of Hawaii (posted 05 November 2012): Because of a lack of funds, HEAR (www.hear.org) may close as soon as December 15, although there may be enough funds to extend it until February 15. This will mean several things. The web site will be placed on a new server although it is not clear who will pay for the server or for transitioning the site. HEAR data will not be updated. The Pacific Ecosystems at Risk (PIER) (http://www.hear.org/pier/abtproj.htm) site will also become frozen, as will numerous books, reports and papers (http://www.hear.org/). As software evolves we will likely lose the ability to access the data. The various list servers will need new owners, otherwise moderated lists will cease to function altogether, while other lists will not be able to add or delete members. The photo collection (http://www.hear.org/starr/images/?o=plants) will remain accessible, but only through a third party site that will charge for access. I should point out that we have already lost the original homes of both the Pacific Basin Information Node (PBIN) and Pacific Ecosystems at Risk (PIER) although they have found temporary refuges. Together with HEAR, they represent the corporate memory both here in Hawaii and across the Pacific of efforts to sustain our natural ecosystems and agriculture against problems caused by species alien to the islands. HEAR also serves as the glue that holds the community together, providing information and facilitating communication. I just hope hindsight is kind to this decision.
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Hydrilla verticillata description and ecology from GISD (ISSG)
A species description and information about the ecology of Hydrilla verticillata as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).
Hydrilla verticillata information from ITIS
The Integrated Taxonomic Information System ITIS provides authoritative taxonomic information on Hydrilla verticillata, as well as other plants, animals, fungi, and microbes of North America and the world.
IPNI nomenclature info for Hydrilla verticillata
Nomenclatural information about Hydrilla verticillata is provided by The International Plant Names Index (IPNI).
Hydrilla verticillata impact information from GISD (ISSG)
Impact information regarding Hydrilla verticillata as an invasive species is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).
Hydrilla line drawing
This Marine Biochemist page contains line drawings and short descriptions for Hydrilla verticillata, Elodea canadensis, and Egeria densa.
Hydrilla verticillata images from PIER
Images of Hydrilla verticillata provided by the Pacific Island Ecosystems at Risk project (PIER).
Hydrilla verticillata worldwide distribution from GISD (ISSG)
Worldwide distribution information about Hydrilla verticillata is provided from the Global Invasive Species Database (GISD). GISD was created and is maintained by IUCN's Invasive Species Specialist Group (ISSG).
Invasive plants of California's wildlands
Bossard, Carla C., John M. Randall, and Marc C. Hoshovsky (eds.) . 2000. Invasive plants of California's wildlands. University of California Press. 360 pp. illus. ISBN: 0-520-22547-3.
Identification and biology of nonnative plants in Florida's natural areas (second edition)
Langeland, K.A., H.M. Cherry, C.M. McCormick, and K.A. Craddock Burks. 2008. Identification and biology of nonnative plants in Florida's natural areas (second edition). The University of Florida IFAS Communication Services (Gainesville). 193+ pp. illus. ISBN: 978-0-916287-70-2.
Invasive species in the Pacific: A technical review and draft regional strategy
South Pacific Regional Environmental Programme (SPREP). Sherley, Greg (ed.) . 2000. Invasive species in the Pacific: A technical review and draft regional strategy. Apia, Samoa: South Pacific Regional Environment Programme. ISBN: 982-04-0214-X.
Turning the tide: The eradication of invasive species (proceedings of the International Conference on Eradication of Island Invasives)
Veitch, C.R. and M.N. Clout (eds.) . 2002. Turning the tide: The eradication of invasive species (proceedings of the International Conference on Eradication of Island Invasives). IUCN SSC Invasive Species Specialist Group. IUCN, Gland, Switzerland and Cambridge, UK. vii + 414pp. ISBN: 2-8317-0682-3.
Control of non-native plants in natural areas of Florida
Langeland, K.A. and R.L. Stocker. (1997-)2001. Control of non-native plants in natural areas of Florida. SP 242, one of a series of the Department of Agronomy, Florida Cooperative Extension Service, Institute of Food and Agricultural
Sciences, University of Florida. First printed: 1997. Revised: April, 2001.
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Some documents posted on the HEAR website are in Adobe Acrobat PDF format. If your computer is not already set up to read these files, you can download the FREE Adobe Acrobat reader. You can set up most web browsers to automatically invoke this reader (as a "helper application" or "add-in") upon encountering documents of this type (refer to your browser's documentation for how to do this). |
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| The Hawaiian Ecosystems at Risk project (HEAR) is currently funded by grants from the Hau'oli Mau Loa Foundation and the U.S. Forest Service with support from PCSU (UH Manoa). Historically, HEAR has also received funding and/or support from the Pacific Basin Information Node (PBIN) of the National Biological Information Infrastructure (NBII), PIERC (USGS), the USFWS, HCSU (UH Hilo), and HALE (NPS). |
| The content of this page is based on information last generated on 05 November 2012 by PT. The template for this page was created on 15 March 2004 by EMS, and was last updated on 02 July 2012 by PT. |
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