Taxon: Egeria densa Planch.

• Check PlantSearch database of Botanic Gardens Conservation International for possible non-NPGS germplasm.

A declared aquatic or terrestrial noxious weed and/or noxious-weed seed in these U.S. states (see state noxious weed lists), with links to state information or web documents:

ALª*, CAª*, CTª, MAª, MEª, NHª, ORª, PRª, SCª, VTª, WAª.

ªAquatic.

*Terrestrial.

°In seed.

Link to noxious weed information from

Link to species profile at

Common names:

• Brazilian elodea   (Source: NPB State Noxweed ME [http://nationalplantboard.org/docs/summaries/maine.pdf]) – English
  
• Brazilian waterweed   (Source: Hortus 3 ME [as Elodea densa]) – English
  
• dense waterweed   (Source: Econ Pl Aust ME) – English
  
• egeria   (Source: Noxweed Aust ME) – English
  
• large-flower waterweed   (Source: BSBI ME) – English
  
• leafy elodea   (Source: Noxweed Aust ME) – English
  
• waterpes   (Source: Weeds SAfr 2001 ME) – Afrikaans
  
• stor vattenpest   (Source: Vara kulturvaxt namn ME) – Swedish
  

Economic importance:

• Environmental: ornamental   (aquarium plant fide Econ Pl Aust; Invasive Pl Spec)
  
• Weed   (fide Econ Pl Aust; Invasive Pl Spec; Weeds SAfr 2001)
  

Distributional range:

• SOUTHERN AMERICA
  Brazil: Brazil [s.e.]
  Southern South America: Argentina; Uruguay

• AFRICA
  Macaronesia: Portugal - Azores
  Southern Africa: South Africa
• ASIA-TEMPERATE
  Western Asia: Turkey
  Caucasus: Georgia - Abkhazia
  China: China - Guangdong
• AUSTRALASIA
  Australia: Australia
  New Zealand: New Zealand
• EUROPE
  Europe
• NORTHERN AMERICA
  Mexico
  United States
• PACIFIC
  North-Central Pacific: United States - Hawaii
  South-Central Pacific: French Polynesia - Society Islands
• SOUTHERN AMERICA
  Caribbean: Jamaica; Puerto Rico
  Mesoamerica: El Salvador; Nicaragua
  Northern South America: Venezuela

• also cultivated

References:

• Aldén, B., S. Ryman & M. Hjertson. 2009. Våra kulturväxters namn - ursprung och användning. Formas, Stockholm (Handbook on Swedish cultivated and utility plants, their names and origin).
• Botanical Society of the British Isles. BSBI taxon database (on-line resource).
• Davis, P. H., ed. 1965–1988. Flora of Turkey and the east Aegean islands.
• FNA Editorial Committee. 1993–. Flora of North America.
• Govaerts, R. World checklist of selected plant families (on-line resource).
• Henderson, L. 2001. Alien weeds and invasive plants: a complete guide to declared weeds and invaders in South Africa. Plant Protection Research Institute, Handbook 12.
• Henderson, M. et al. 1987. Declared weeds and alien invader plants in South Africa. Botanical Research Institute, bulletin 413.
• Hnatiuk, R. J. 1990. Census of Australian vascular plants. Australian Flora and Fauna Series No. 11.
• Huxley, A., ed. 1992. The new Royal Horticultural Society dictionary of gardening.
• Invasive Species Specialist Group (ISSG) of the IUCN Species Survival Commission; National Biological Information Infrastructure, Manaaki Whenua-Landcare Research and the University of Auckland. Global invasive species database (on-line resource).
• Lazarides, M. & B. Hince. 1993. CSIRO Handbook of Economic Plants of Australia.
• Liberty Hyde Bailey Hortorium. 1976. Hortus third. [= Elodea densa].
• National Plant Board. 2008–. National Plant Board federal and state quarantine summaries.
• Parsons, W. T. & E. G. Cuthbertson. 1992. Noxious weeds of Australia.
• Radford, A. E. et al. 1964. Manual of the vascular flora of the Carolinas.
• Seymour, F. 1969. The flora of New England.
• Tutin, T. G. et al., eds. 1980. Flora europaea. 5:4.
• USDA National Agricultural Library. National Invasive Species Information Center (on-line resource).
• Weber, E. 2003. Invasive plant species of the world: a reference guide to environmental weeds.
• Wu Zheng-yi & P. H. Raven et al., eds. 1994–. Flora of China (English edition).

More:

Search AGRICOLA article citation database for citations referencing Egeria densa.

Search NCBI's Entrez search engine for PubMed citations referencing Egeria densa.

Search Biodiversity Heritage Library for historical publications referencing Egeria densa.

Synonyms:

• (≡) Anacharis densa (Planch.) Vict.
  
• (≡) Elodea densa (Planch.) Casp.
  

Check other web resources for Egeria densa Planch.:

• Flora Europaea: Database of European Plants (ESFEDS)
• Flora of North America: Collaborative Floristic Effort of North American Botanists
• PLANTS: USDA-NRCS Database of Plants of the United States and its Territories
• BONAP: North American Plant Atlas of the Biota of North America Program
• Flora del Conosur: Catálogo de las Plantas Vasculares del Conosur
• Flora of China: Online version from Harvard University
• AVH: Australia's Virtual Herbarium
• SIBIS: South African National Biodiversity Institute's (SANBI) Integrated Biodiversity System
• TROPICOS: Nomenclatural and Specimen Database of the Missouri Botanical Garden
• ePIC: Electronic Plant Information Centre of Royal Botanic Gardens, Kew
• AGRICOLA: Article Citation Database or NAL Catalog of USDA's National Agricultural Library
• Entrez: NCBI's search engine for PubMed citations, GenBank sequences, etc.

Images:

• Forestry Images: from www.forestryimages.org

More:

• Check PlantSystematics.org for additional images
• Images Note: Be advised that their identity may be inaccurate. Proper identification of a plant may require specialized taxonomic knowledge or comparison with properly documented herbarium material.

Abbreviations & symbols in GRIN Taxonomy

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