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Taxon:  Elodea canadensis Michx.



Summary
Genus:
Elodea
Subfamily:
Anacharidoideae
Nomen number:
400047
Place of publication:
Fl. bor.-amer. 1:20. 1803
Verified:
05/18/1995 ARS Systematic Botanists.
Accessions:
0 (0  active, 0  available) in National Plant Germplasm System. 
Other conspecific taxa
Autonyms (not in current use), synonyms and invalid designations
Homotypic Synonym(s)
Anacharis canadensis (Michx.) Planch.

No images
Reference(s)
  1. Aldén, B., S. Ryman & M. Hjertson. Våra kulturväxters namn - ursprung och användning. Formas, Stockholm (Handbook on Swedish cultivated and utility plants, their names and origin). 2009 Note:
    • based on Alden, B. & S. Ryman. 2005-: SKUD (Swedish Utility and Cultivated Plants Database)
    • http://www.skud.info
  2. Erhardt, W. et al. Zander: Handwörterbuch der Pflanzennamen, 16. Auflage. 2000
  3. Euro+Med Editorial Committee. Euro+Med Plantbase: the information resource for Euro-Mediterranean plant diversity (on-line resource). http://www.emplantbase.org/home.html
  4. FNA Editorial Committee. Flora of North America. 1993- http://floranorthamerica.org/
  5. Gleason, H. A. & A. Cronquist. Manual of vascular plants of northeastern United States and adjacent Canada, ed. 2. 1991
  6. Henderson, L. Alien weeds and invasive plants: a complete guide to declared weeds and invaders in South Africa. Plant Protection Research Institute, Handbook 12. 2001
  7. Hnatiuk, R. J. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11. 1990
  8. Huxley, A., ed. The new Royal Horticultural Society dictionary of gardening. 1992
  9. Integrated Botanical Information System (IBIS). Australian plant common name database (on-line resource). http://www.anbg.gov.au/common.names/
  10. Kartesz, J. T. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 1994
  11. Krasnoborov, I. M., ed. Flora of Siberia (English translation). 2000-
  12. Liberty Hyde Bailey Hortorium. Hortus third. 1976
  13. McGregor, R. L. et al. (The Great Plains Flora Association). Flora of the Great Plains. 1986
  14. Parsons, W. T. & E. G. Cuthbertson. Noxious weeds of Australia. 1992 Note: Inkata Press, Melbourne
  15. Radford, A. E. et al. Manual of the vascular flora of the Carolinas. 1964
  16. Scoggan, H. J. The flora of Canada, 4 vol. 1978-1979
  17. Seymour, F. The flora of New England. 1969
  18. Weber, E. Invasive plant species of the world: a reference guide to environmental weeds. 2003
  19. Webster's third new international dictionary. 1961
Common names
English
American-duckweed –
Canadian elodea –
Canadian waterweed –
Canadian-pondweed –
oxygen-weed –
water-thyme –
waterweed –
Afrikaans
Kanadese waterpes –
French
elodée du Canada –
German
kanadische Wasserpest –
Swedish
vattenpest –
Distribution
Native
Northern America
  • EASTERN CANADA: Canada [New Brunswick, Nova Scotia, Ontario, Quebec]
  • NORTH-CENTRAL U.S.A.: United States [Illinois, Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, South Dakota, Wisconsin]
  • NORTHEASTERN U.S.A.: United States [Connecticut, Indiana, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia]
  • NORTHWESTERN U.S.A.: United States [Colorado, Idaho, Montana, Oregon, Washington, Wyoming]
  • SOUTH-CENTRAL U.S.A.: United States [New Mexico]
  • SOUTHEASTERN U.S.A.: United States [Alabama, Arkansas, Delaware, Florida, Kentucky, Maryland, North Carolina, Tennessee (http://tenn.bio.utk.edu/vascular/database/vascular-database.asp?CategoryID=Monocots&FamilyID=Hydrocharitaceae&GenusID=Elodea&SpeciesID=canadensis), Virginia]
  • SOUTHWESTERN U.S.A.: United States [California, Nevada, Utah]
  • WESTERN CANADA: Canada [British Columbia, Manitoba, Saskatchewan]
Cultivated (also cult.)
Naturalized
Africa
  • NORTHERN AFRICA: Egypt
Asia-Temperate
  • SIBERIA: Russian Federation [Krasnoyarsk, Irkutsk, Kurgan, Tyumen]
Australasia
  • AUSTRALIA: Australia
  • NEW ZEALAND: New Zealand
Europe
  • REGION: Europe
Northern America
  • REGION: Mexico
Pacific
  • NORTH-CENTRAL PACIFIC: United States [Hawaii]
Southern America
  • REGION: South America
  • MESOAMERICA: Central America
Economic Uses
Environmental
Weed
potential seed contaminant (fide Noxweed Aust; Invasive Pl Spec; Weeds SAfr 2001) –


NGBT Plant Germplasm System Distribution Policy

Plant germplasm is distributed to scientists, educators, producers and other bona fide research and education entities from National genebank of Tunisia active collection sites. The NGBT Curator and/or Research Leader will, in accordance with current NPGS policies and procedures, determine the legitimacy of a request when necessary.

Distributions to fulfill requests for repatriation of subsamples of germplasm collections to a country or community of origin, especially following natural or man-made catastrophes, are considered a high priority.

Although distributions for research, education, and repatriation are of the highest priority, the NPGS also encourages various seed-saver organizations and public gardens to conduct germplasm conservation activities that engage many individuals and groups throughout the country. Elements of the NPGS cooperate with seed-saver organizations and public gardens and may store germplasm for and distribute germplasm to such organizations.

Distribution of germplasm from NPGS collections to fulfill requests from individuals seeking free germplasm strictly for home use is generally considered an inappropriate use of limited resources and conflicts with U.S. Government policy of not competing with commercial enterprises. Requestors can be asked, in an appropriate manner, to justify the use of specific NPGS germplasm instead of suitable commercially available germplasm.

Accessions listed in the Germplasm Resources Information Network (GRIN) database as “not available” due to insufficient or low viability seed and/or scheduled for regeneration will generally not be available for distribution.

Other accessions are listed in GRIN as “not available” because they are not a part of the NPGS collection per se, but are conserved in NPGS genebanks to meet specific needs as described later in the section entitled “Categories of Germplasm Distributed and Availability.” In this category are certain accessions of improved germplasm that are only available from the owner/developer. Other accessions require that specific conditions be met by the requestor before distribution is possible.

NPGS sites will not distribute germplasm internationally when they cannot comply with the importation or quarantine requirements of the recipient country unless the requestor can provide a valid waiver of such requirements.