hydrilla - Robuta Search

https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1438620 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://seagrant.psu.edu/resources/resource-item/hydrilla/ Hydrilla AIS Fact Sheet - Pennsylvania Sea Grant Dec 4, 2025 - Species at a Glance Hydrilla is a submerged, aquatic, perennial plant that grows and spreads at a very fast rate covering the surface of water bodies and... fact sheet hydrilla ais pennsylvania sea https://nas.er.usgs.gov/queries/CollectionInfo.aspx?SpeciesID=2943&State=WV&HUCNumber=05030106 wandering hydrilla - Collections wandering hydrilla collections https://hydrilla.com.au/ Hydrilla Commercial Swimming Pools and Aquatics Hydrilla Pty Ltd are Innovators in Commercial Swimming Pools and Aquatic Systems commercial swimming pools hydrilla aquatics https://blogs.ifas.ufl.edu/global/tag/hydrilla/ hydrilla Archives - What's Happening Around Florida hydrilla archives happening around florida https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=228976 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=230440 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1690741 northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=230117 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=862522 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1516840 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/CollectionInfo.aspx?SpeciesID=2943&State=MD&YearFrom=2024&YearTo=2024 wandering hydrilla - Collections wandering hydrilla collections https://ask.ifas.ufl.edu/publication/IN1044?downloadOpen=true IPM-207/IN1044: Hydrilla Integrated Management The purpose of this book, published in August 2014, is to deliver up-to-date information on hydrilla management tactics that are available for developing... ipm hydrilla integrated management https://nas.er.usgs.gov/queries/CollectionInfo.aspx?SpeciesID=2942&State=FL&HUCNumber=03130004 whorled hydrilla - Collections hydrilla collections https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=213813 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1401612 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=866187 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1521584 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://ask.ifas.ufl.edu/topics/hydrilla Ask IFAS: Topic - Hydrilla Details for the Ask IFAS Topic 'Hydrilla', including related Topics, associated publications, and units it is associated with ask ifas topic hydrilla https://nas.er.usgs.gov/queries/CollectionInfo.aspx?SpeciesID=6&State=GA&YearFrom=2025&YearTo=2025 hydrilla - Collections hydrilla collections https://nas.er.usgs.gov/queries/CollectionInfo.aspx?SpeciesID=6&State=TX&HUCNumber=12110106 hydrilla - Collections hydrilla collections https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1888687 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://www.usace.army.mil/Media/Images/igphoto/2002232414/ Hydrilla occurrences in the Great Lakes Basin Documented hydrilla occurrences in the Great Lakes Basin. Photo courtesy of the Great Lakes Hydrilla Collaborative. the great lakes hydrilla occurrences basin https://myemail-api.constantcontact.com/Hydrilla-Application-on-August-22.html?soid=1102788239179&aid=qnLSwmrrSZQ Hydrilla Application on August 22 hydrilla application august https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1863395 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/CollectionInfo.aspx?SpeciesID=2942&State=AL&HUCNumber=03130004 whorled hydrilla - Collections hydrilla collections https://gobotany-dev.herokuapp.com/species/hydrilla/verticillata/ Hydrilla verticillata (water-thyme): Go Botany hydrilla water thyme go botany https://nas.er.usgs.gov/queries/CollectionInfo.aspx?SpeciesID=6&State=VA&HUCNumber=03010205 hydrilla - Collections hydrilla collections https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1888511 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://www.mass.gov/event/usace-connecticut-river-hydrilla-research-and-demonstration-project-public-stakeholder-meeting-4282025-04-28-2025 USACE Connecticut River Hydrilla Research and Demonstration Project Public Stakeholder Meeting... research and demonstration connecticut river usace hydrilla https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1690442 northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1470833 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://www.cdfa.ca.gov/plant/ipc/hydrilla/hydrilla_hp.html CDFA - Plant Health - Integrated Pest Control - Hydrilla Eradication Program plant health pest control cdfa integrated hydrilla https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1752153 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1687539 northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1854784 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/CollectionInfo.aspx?SpeciesID=6&State=OK&HUCNumber=11110104 hydrilla - Collections hydrilla collections https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1520340 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1688251 northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1407215 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://aquaplant.tamu.edu/management-options/hydrilla/ How to Control Hydrilla - AquaPlant: Management of Pond Plants & Algae Aug 1, 2025 - Learn more about How to Control Hydrilla. View plant photos, descriptions, maps, treatment options, and more. how to control pond plants hydrilla management algae https://erie.cce.cornell.edu/invasive-species/wny-hydrilla-project Cornell Cooperative Extension | WNY Hydrilla Project If you are unable to find content you need, a broken link, or a missing resource, please reach out to the office. Project Information Project Area Map -... cornell cooperative extension wny hydrilla project https://ncseagrant.ncsu.edu/currents/2014/09/hop-on-board-the-hydrilla-guerillas-are-here/ Hop on Board: The Hydrilla Guerillas are Here - Coastwatch CurrentsCoastwatch Currents hop on board are here hydrilla https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1396722 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=229126 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1333379 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1752160 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1689930 northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=235692 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1396621 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=232120 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=230639 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=219838 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://dec.ny.gov/nature/animals-fish-plants/hydrilla Hydrilla - NYSDEC Hydrilla or "water thyme" is an aquatic plant from Asia that is one of the most difficult aquatic invasive species to control and eradicate in the United... hydrilla nysdec https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1257790 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1397507 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1519248 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1407214 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1654372 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://blogs.ifas.ufl.edu/escambiaco/2021/09/01/six-rivers-cisma-edrr-invasive-species-of-the-month-hydrilla/ Six Rivers CISMA EDRR Invasive Species of the Month - Hydrilla - UF/IFAS Extension Escambia County Sep 1, 2021 - Email 0 Facebook 0 Twitter 0 Reddit 0 X Linkedin 0 Stumbleupon 0 EDRR Invasive Species Hydrilla (Hydrilla verticillata) Define Invasive Species: must have ALL... https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1650615 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=230108 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1750721 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://www.jardineriaon.com/la-invasion-de-la-hydrilla-verticillata-pone-en-jaque-la-biodiversidad-de-la-cienaga-grande.html La invasión de la Hydrilla verticillata pone en jaque la biodiversidad de la Ciénaga Grande La planta invasora Hydrilla verticillata amenaza la pesca y el oxígeno en la Ciénaga Grande. Conoce las medidas de urgencia y su impacto ambiental. en jaque la de https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1690067 northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1689937 northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1689949 northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1701186 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=274404 hydrilla (Hydrilla verticillata) - Collection record hydrilla (Hydrilla verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=225676 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1257789 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1471031 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=215656 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=873309 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1863415 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/CollectionInfo.aspx?SpeciesID=2943&State=CT&HUCNumber=01100005 wandering hydrilla - Collections wandering hydrilla collections https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1690394 northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla (Hydrilla verticillata lithuanica) - Collection record northern hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=230912 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=866144 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1736600 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/CollectionInfo.aspx?SpeciesID=6&State=AZ&HUCNumber=15050301 hydrilla - Collections hydrilla collections https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=867215 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1751823 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://ask.ifas.ufl.edu/publication/IN1036 EENY594/IN1036: Hydrilla Stem Weevil Bagous hydrillae O'Brien The Featured Creatures collection provides in-depth profiles of insects, nematodes, arachnids, and other organisms relevant to Florida. These profiles are... hydrilla stem weevil brien https://nas.er.usgs.gov/queries/CollectionInfo.aspx?SpeciesID=6&State=VA&HUCNumber=02070005 hydrilla - Collections hydrilla collections https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1834001 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/CollectionInfo.aspx?SpeciesID=6&State=MD&YearFrom=2024&YearTo=2024 hydrilla - Collections hydrilla collections https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1437388 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/Queries/SpecimenViewer.aspx?SpecimenID=1826599 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://dwr.virginia.gov/fishing/aquatic-plant-id-and-treatment/submergent/hydrilla/ Hydrilla | Virginia DWR Hydrilla is often confused with Elodea. Hydrilla can be distinguished from Elodea by texture and leaves are usually found in groups of 4 or more. hydrilla virginia dwr https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1752557 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=223443 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/Queries/SpecimenViewer.aspx?SpecimenID=1826573 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1851988 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1752631 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record https://nas.er.usgs.gov/queries/CollectionInfo.aspx?SpeciesID=6&State=WV&HUCNumber=02070003 hydrilla - Collections hydrilla collections https://ceb.wikipedia.org/wiki/Hydrilla Hydrilla verticillata - Wikipedia hydrilla wikipedia https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1516323 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1396896 whorled hydrilla (Hydrilla verticillata verticillata) - Collection record whorled hydrilla (Hydrilla verticillata verticillata) - Collection record hydrilla collection record https://nas.er.usgs.gov/queries/SpecimenViewer.aspx?SpecimenID=1462739 wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla (Hydrilla verticillata peregrina) - Collection record wandering hydrilla peregrina collection record