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ANACHARIS (Hydrilla/Elodea)

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South Carolina ANACHARIS - WARNING! Noxious Weed List Alligatorweed Althernanthera philoxeriodes Brazilian elodea Egeria densa Common reed Phragmites australis Eurasian watermilfoil Myriophyllum spicatum Hydrilla * Hydrilla verticallata Purple loosestrife Lythrum salicaria Slender naiad Najas minor Water chestnut Trapa natans Water hyacinth Eichhornia crassipes Water lettuce Pistia stratiotes Water primrose Ludwigia hexapetala African oxygen weed * Lagarosiphon major Ambulia * Limnophila sessilflora Arrowhead * Sagittaria sagittifolia Arrow-leaved monochoria * Monochoria hastata Preventing the occurrence Duck-lettuce * Ottelia alismoides and spread of aquatic Exotic bur reed * Sparganium erectum Giant salvinia * Salvinia molesta S. biloba weed infestations in South S. herzogii, S. auriculata Mediterranean caulerpa * Caulerpa taxifolia Carolina waters can save Melaleuca * Melaleuca quinquenervia millions of public and Miramar weed * Hygrophila polysperma Pickerel weed * Monochoria vaginalis private dollars each year Mosquito fern * Azolla pinnata in avoided control costs. Rooted water hyacinth * Eichhornia azurea Water spinach * Ipomoea aquatica What Is It? Wetland nightshade * Solanum tampicense * Also on the Federal Noxious Weed List How Do I Identify It? If you have any questions or just need more Information contact us at: STOP AQUATIC http://www.dnr.sc.gov/water/envaff/aquatic/index.html HITCHHIKERS! E-mail: [email protected] Prevent the transport of nuisance species. Aquatic Nuisance Species Program Aquatic Nuisance Species Program South Carolina Department of Natural Resources 2730 Fish Hatchery Road 2730 Fish Hatchery road West Columbia, SC 29172 West Columbia, SC 29172 Phone (803)755-2872 Phone (803)755-2872 07WR5499 he term “Anacharis”, as used by commercial aquatic plant suppliers, includes a variety of oxygen plants that resemble the elodeas. Plants sold T Plant names used How you can help! under this name include the true Elodeas and two species that are illegal to sell in South Carolina, Brazilian elodea (Egeria densa) and Hydrilla (Hydrilla in commercial verticillata). Hydrilla and Egeria grow abundantly in our waterways and cause catalogues under quatic weed problems are caused major ecological and water use problems. Millions of dollars have been spent Anacharis: primarily by boaters and fishermen to control the growth of these plants in South Carolinas lakes and rivers. These A Anacharis densa unknowingly spreading aquatic two species are included on the State Noxious Weed List and the State Plant Anacharis canadensis weeds from one lake to another and Pest List as illegal to import, sell and distribute in South Carolina. homeowners disposing of water garden You can help reduce the potential for these aquatic weed problems by Egeria densa and aquarium plants in public waters and carefully purchasing and selling only true elodeas. Please ask your supplier Egeria gigantica private ponds. You can help control the for the current scientific name of the plants sold as Anacharis, and refuse to spread of invasive aquatic plants by doing purchase Egeria densa and Hydrilla verticillata. the following: When you leave a body of water: These plants look very similar, so use the information below to help you identify them. ♦Remove any visible mud, plants, fish or animals before transporting equipment. Comparison of Elodea, Egeria and Hydrilla ♦Eliminate water from equipment before transporting. Elodea canadensis Egeria densa Hydrilla verticillata ♦ Smooth to the touch ♦ Smooth to the touch ♦ Rough to the touch ♦Clean and dry anything that comes ♦ Serrulate leaf margins barely ♦ Serrulate leaf margins barely ♦ Sharply toothed leaf margins, into contact with water (boats, trailers, evident without magnification evident without magnification usually evident without equipment, clothing, dogs, etc.). ♦ Lower midrib of the leaves ♦ Lower midrib of the leaves magnification smooth smooth ♦ Usually 1-12 small, sharp ♦Never release plants, fish or animals ♦ Staminate flowers 1/3 inch ♦ Large, showy staminate teeth or spines on the lower into a body of water unless they came wide , pistillate flowers flowers, 1/2 - 3/4 inch wide midrib of the leaf out of that body of water. 1/6 - 1/4 inch wide ♦ Number of leaves at ♦ Small, inconspicious white ♦Report aquatic weed problems in public ♦ Number of leaves per whorl branching nodes usually pistillate flowers, less than about the same at branching double the number at non 1/4 inch wide waters to the Aquatic Nuisance Species and non-branching nodes branching nodes ♦ Number of leaves per whorl Program, SCDNR (1-803-755-2872). ♦ Leaves in whorls of 3 ♦ Leaves in whorls of 3-4 usually about the same at branching and non branching nodes; however, they may be double ♦ Leaves in whorls of 3-8.
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