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   Hydrilla verticillata (aquatic plant)
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    Details of this species in Washington
    Status: Alien
    Invasiveness: Invasive
    Occurrence: Reported
    Source: http://plants.usda.gov/cgi_bin/topics.cgi
    Arrival Date:
    Introduction: Unknown
    Species Notes for this Location:
    Only monoecious plants have been discovered.
    Management Notes for this Location:
    Location Notes:
    Impacts:
    Competition: Hydrilla grows tall and dense and displaces other aquatic life thereby reducing biodiversity.
    Economic/Livelihoods: Overabundant Hydrilla makes it difficult for fish to find their prey, causing a decline in valuable sport fisheries. Recreational areas lose visitors and their associated monetary spending when Hydrilla clogs boat motors and entangles swimmers.
    Human nuisance: Hydrilla makes recreational activities difficult by entangling boat motors and choking swimming areas.
    Last Modified: 29/12/2003 11:47:09 a.m.
ISSG Landcare Research NBII IUCN University of Auckland The Global Invasive Species Database is managed by the Invasive Species Specialist Group (ISSG) of the IUCN Species Survival Commission. It was developed as part of the global initiative on invasive species led by the Global Invasive Species Programme (GISP) and is supported through partnerships with the National Biological Information Infrastructure, Manaaki Whenua-Landcare Research and the University of Auckland. Conditions of use.