REGULATED NOXIOUS AQUATIC WEEDS
Combined State and Federal Lists
February 18, 2010
Scientific Name Family Common Name  States and/or Federal 
Aeschynomene indica Fabaceae Indian Jointvetch HI
Aeschynomene rudis Fabaceae Rough Jointvetch CA
Aeschynomene virginica Fabaceae Curly Indigo AR
Alternanthera philoxeroides Amaranthaceae Alligatorweed AL, AZ, AR, CA, FL, PR, SC, TX
Alternanthera sessilis Amaranthaceae Sessile Joyweed CA, DE, MA, PR
Alternanthera spp. Amaranthaceae Joyweed AR, PR
Arundo donax Mediterranean Reed TX
Azolla pinnata Azollaceae Mosquito Fern, Water Velvet FED;  DE, ID, MA, OK, OR
Bacopa spp. Scrophulariaceae Waterhyssop PR
Brasenia schreberi Cabombaceae Watershield PR
Butomus umbellatus Cabombaceae Flowering Rush CT, ID, MI, MT, NH, OR, VT, WA, restricted WI, City of Chicago
Cabomba caroliniana Cabombaceae Purple Fanwort CA, CT, ID, MA, ME, MI, NH, Nassau County NY, PR, VT, WA, WI
Cabomba piauhyensis Fanwort WA
Cabomba spp. Cabombaceae Fanwort PR
Callitriche stagnalis Pond Water-Starwort CT
Calotropis procera Asclepiadaceae Giant Milkweed PR
Canna flaccida Cannaceae Canna PR
Cardamine impatiens Nassau County NY, Canada
Casuarina spp. Australian Pine FL
Caulerpa taxifolia Caulerpaceae Mediterranean Caul. clone FED;  DE, MA, MD, OK, OR
Cephalanthus occidentalis Rubiaceae Buttonbush PR
Ceratophyllum demersum Ceratophyllaceae Coontail PR
Ceratophyllum spp. Ceratophyllaceae Coontail PR
Cicuta maculata Water Hemlock NV
Colocasia esculenta Araceae Wild Taro PR
Colocasia spp. Araceae Taro HI (p) (q)
Crassula helmsii Crassulaceae Swamp Stonecrop FL, NC, WI, Canada
Crinum americanum Amaryllidaceae Swamp Lily PR
Cylindrospermopsis raciborskii Cylindro MI
Cyperus esculentus Cyperaceae Yellow Nutsedge CA, CO, HI, MI, OR, WA
Cyperus odoratus Cyperaceae Flatsedge PR
Cyperus rotundus Cyperaceae Purple Nutsedge AR, CA, OR
Cyperus spp. Cyperaceae Nutgrass RI
Egeria (Elodea) densa Hydrocharitaceae Brazilian Elodea AL, CT, ID, IN, MA, ME, MI, NC, NH, Nassau County NY, OR, PR, SC, VT, WA, WI, City of Chicago
IN prohibits the sale of Egeria in Garden Centers but not Pet Stores
Egeria najas CA
Eichhornia azurea Pontederiaceae Anchored Waterhyacinth FED;  AR, AZ, DE, LA, MA, OK, OR, TX
Eichhornia crassipes Pontederiaceae Waterhyacinth AL, AR, AZ, CA county regulated, LA, PR, SC, TX, City of Chicago
Eichhornia spp. Pontederiaceae Waterhyacinth FL, PR
Eleocharis baldwinii Cyperaceae Slender Spikerush PR
Eleocharis spp. Cyperaceae Spikerush PR
Elodea canadensis Hydrocharitaceae Common Elodea LA, ME
Epilobium hirsutum Onagraceae Hairy Willow Herb MA, WA, WI
Equisetum telmateia Equisetaceae Giant Horsetail OR
Fallopia japonica Japanese Knotweed MI, Nassau County NY, VT
Glossostigma diandrum Schrophulariaceae Mud Mat OK, WA
Glyceria maxima Manna Grass MA, WA, WI
Haplotyme SD county regulated
Heracleum mantegazzianum Giant Hogweed ID, MA, MI, Nassau County NY, WI
Houttuynia cordata     City of Chicago
Houttuynia cordata 'Variegata'   Chameleon Plant City of Chicago
Hydrilla hydrilla Hydrocharitaceae Hydrilla CO
Hydrilla verticillata Hydrocharitaceae Hydrilla FED;  AZ, CA, CT, DE, FL, ID, LA, MA, ME, MI, MS, MT, NH, NV, Nassau County NY, OK, OR, PR, SC, TX, VT, WA, WI,  City of Chicago, Canada
Hydrocharis morsus-ranae Hydrocharitaceae Frogbit CA, ID, ME, MI, NH, Nassau County NY, VT, WA, WI, City of Chicago
Hydrocotyle spp. Umbelliferae Pennywort PR
Hydrocotyle umbellata Umbelliferae Water Pennywort PR
Hygrophila polysperma Acanthaceae Hygrophila, Miramar weed FED;   CA, DE, FL, MA, OK, OR, VT
Ipomoea aquatica Convolvulaceae Chinese Waterspinach FED;   DE, FL, MA, OK, TX, City of Chicago
Ipomoea fistulosa Convolvulaceae Bush Morningglory FL
Ipomoea spp. Convolvulaceae Morningglory AZ, AR, MI, PR
Ipomoea triloba Convolvulaceae Threelobe Morningglory AZ, PR
Iris pseudacorus Iridaceae Yellow Flag Iris CT, ID, MA, MT, Nassau Countty NY 1/1/2012, OR, VT, WA, City of Chicago
Iris virginica Iridaceae Blue Flag PR
Juncus effusus Juncaceae Soft Rush PR
Lachnanthes caroliniana Haemodoraceae Redroot PR
Lagarosiphon major Hydrocharitaceae Oxygen weed FED;  CA, DE, MA, MI, OK, OR, TX, WI
Lagarosiphon spp. Hydrocharitaceae African Elodea FL, LA, MI, NC, OK
Lemna valdiviana Lemnaceae Valdivia Duckweed PR
Limnobium laevigatum Hydrocharitaceae Sponge Plant CA
Limnobium spongia Hydrocharitaceae American Frogbit CA, PR
Limnocharis flava Alismataceae Sawah Flowering Rush, Velvet Leaf FL
Limnophila indica Scrophulariaceae Ambulia CA, Canada
Limnophila sessiliflora Scrophulariaceae Ambulia FED;  CA, DE, FL, MA, OK, OR, Canada
Ludwigia alternifolia Onagraceae Bushy Waterprimrose PR
Ludwigia grandiflora Nassau County NY, Canada
Ludwigia hexapetala Onagraceae Uruguay Waterprimrose NC, SC, WA
Ludwigia peploides   Water Primrose Nassau County NY
Ludwigia peruviana Water Primrose CA, Canada
Ludwigia repens Onagraceae Floating Waterprimrose PR
Ludwigia spp. Onagraceae Waterprimrose PR
Ludwigia uruguayensis Onagraceae Uruguay Waterprimrose NC, SC
Luziola fluitans Poaceae Southern Watergrass PR
Lysimachia nummularia Primulaceae Creeping Jenny MA, Nassau County NY 1/1/2011
Lysimachia vulgaris Primulaceae Garden Loosestrife CT, Nassau County NY 1/1/2011, WA
Lythrum alatum Lythraceae Winged Loosestrife NH, TN
Lythrum salicaria Lythraceae Purple Loosestrife AL, AZ, AR, CA, CO, CT, FL, ID, IL, IN, IA, LA, MA, MI, MN, MO, MT, NE, NV, NH, ND, Nassau County NY, OH, OK, OR, PA, SD, TN, TX, UT, VA, VT, WA, restricted WI, WY, City of Chicago
Lythrum spp. (not native to specific state) Lythraceae Loosestrife AR, MI, MT, NC, PA, TN, WA, WI
Lythrum virgatum Lythraceae Wand Loosestrife IA, MN, MT, NE, NV, NH, ND, SD, TN, WA
Marsilea minuta Dwarf Four Leaf Clover OK
Marsilea mutica   Variegated Four Leaf Clover OK
Marsilea quadrifolia   Four Leaf Clover CT, OK, Canada
Mechamandra alternifolia FL
Melaleuca quinquenervia Myrtaceae Melaleuca DE, FL, LA, MA, OK, TX
Mentha aquatica Labiatae Aquatic Mint ID(q), MT(q), NE(q), WY(q)
Micranthemem umbrosum Scrophulariaceae Globifera PR
Mimosa pigra Giant Sensitive Plant FL
Miscanthus floridulus Poaceae Miscanthus HI
Miscanthus sacchariflorus Poaceae Silver Grass MA
Monochoria hastata Pontederiaceae Monochoria FED;  DE, FL, MA, OK, OR
Monochoria vaginalis Pontederiaceae Pickerelweed FED;  DE, FL, MA
Murdannia keisak Commelinaceae Marsh Dew Flower WA
Myosotis scirpoides   Forget-me-not CT, MA
Myriophyllum aquaticum Haloragidaceae Parrotfeather AL, CA county regulated, CT, ID, MA ,ME, MI, NV, NH, Nassau County NY, OR, VT, WA, WI, PR, City of Chicago, Canada
Myriophyllum heterophyllum Haloragaceae Variableleaf Watermilfoil CT, ID, MA, ME, NH, Nassau County NY 1/1/2011, VT
Myriophyllum pinnatum ME, Nassau County NY 1/1/2011
Myriophyllum proserpinacoides ME
Myriophyllum spicatum Haloragaceae Eurasian Watermilfoil AL, CO, CT, FL, ID, LA, MA, ME, MI, MT, NH, NC, NV, Nassau County NY, OR, PR, SC, SD, TX, VT, WA, restricted WI, City of Chicago
Myriophyllum spp. Haloragaceae Milfoil ME, PR
Najas marina Marine Naiad CT
Najas minor Najadaceae Slender-Leaved Naiad CT, LA, MA, ME, NC, NH, SC, WA, WI, Canada
Nelumbo lutea Nelumbonaceae American Lotus CT, PR
Nitellopsis obtusa Starry Stonewort MI
Nuphar luteum Nymphaceae Spatterdock PR
Nymphaea mexicana Nymphaceae Banana Waterlily CA, PR
Nymphaea odorata Nymphaceae Fragrant Waterlily PR, WA
Nymphoides peltata Nymphaceae Yellow Floating Heart CT, ID, MA, ME, MI, NH, Nassau County NY, OR, VT, WA, WI, Canada
Orontium aquaticum Araceae Goldenclub PR
Oryza rufipogon Wild Red Rice FL
Oryza sativa var. Red Rice AR
Ottelia alismoides Hydrocharitaceae Duck-lettuce FED;  DE, OK
Panicum antidotale Poaceae Blue Panicgrass CA
Panicum hemitomon Poaceae Maidencane PR
Panicum miliaceum Poaceae Wild Proso Millet CO, OR
Panicum repens Poaceae Torpedo Grass AL, AZ, HI, LA, TX
Peltandra virginica Araceae Arrow-arum PR
Phalaris arundinacea Reed Canary Grass MA, Nassau County NY
Phragmites australis Poaceae Common Reed AL, CT, ID, MA, MI, NC, NE, NH, Nassau County NY, PR, SC, SD county regulated, VT, restricted WI
Phragmites australis aurea Poaceae Variegated Dwarf Common Reed CT, MA, MI, NC, VT
Phragmites australis 'Candy Stripe' Poaceae Candy Stripe Reed CT, MA, MI, NC, VT
Phragmites communis Poaceae Common Reed CT, NC, SC, NH
Pistia spp. Araceae Water Lettuce SC
Pistia stratiotes Araceae Waterlettuce AL, CA county regulated, CT, FL, LA, PR, SC, TX
Polygonum x bohemicum Bohemian Knotweed ID
Polygonum cuspidatum Polygonaceae Japanese Knotweed AL, CA, ID, MA, OR, restricteed WI
Polygonum perfoliatum Polygonaceae Mile-a-minute MA, NC, OH, PA, WI
Polygonum polystachyum Polygonaceae Himalayan Knotweed CA, OR
Polygonum sachalinense Polygonaceae Giant Knotweed CA, ID, OR, SD, county regulated, WI
Polygonum spp. Polygonaceae Knotweed MT, PR
Pontederia cordata Pontederiaceae Pickerelweed PR
Pontederia rotundifolia Pontederiaceae Tropical Pickerelweed FL
Pontederia spp. Pontederiaceae Pickerelweed LA
Potamogeton crispus Potamogetonaceae Curly Leaf Pondweed AL, CT, ID, MA, ME, MI, MT, NH, Nassau County NY, VT, restricted WI
Potamogeton illinoensis Potamogetonaceae Illinois Pondweed PR
Potamogeton pectinatus Potamogetonaceae Sago Pondweed PR
Potamogeton spp. Potamogetonaceae Pondweed PR
Potentilla recta Rosaceae Sulfur Cinquefoil CA, CO, MT, NV, OR, WA
Ranunculus acris Tall Buttercup MT
Ranunculus ficaria Lesser celandine Nassau County NY
Ranunculus lingua   Greater Spearwort City of Chicago
Rorippa amphibia Water Yellowcress MA
Rorippa microphylla Oneroe Yellowcress CT
Rorippa nasturtium-aquaticum Watercress CT
Rumex spp.   Water Dock AR
Sagittaria graminea Alismataceae Slender Arrowhead PR, WA
Sagittaria lancifolia Alismataceae Lanceleaf Arrowhead PR
Sagittaria latifolia Alismataceae Common Arrowhead PR
Sagittaria sagittifolia Alismataceae Arrowhead FED;  DE, MA, NC, OK, Canada
Sagittaria spp. Alismataceae Arrowhead PR
Salvinia auriculata Salviniaceae Salvinia FED;  CA, DE, CA, MA, MI, OK, VT
Salvinia biloba Salviniaceae Giant Salvinia FED;  CA, DE, MA, OK, VT
Salvinia herzogii Salviniaceae Giant Salvinia FED;  CA, DE, MA, MI, OK, VT
Salvinia minima Salviniaceae Water Spangles Canada
Salvinia molesta Salviniaceae Giant Salvinia FED;  AR, AZ, CA, CO, CT, DE, ID, MA, MD, MI, MS, NV, OK, OR, TN, VT
Salvinia spp. Salviniaceae Waterfern FL (excludes S. minima), LA, MI, NC (excludes S. minima), OR, PR, TX
Saururus cernuus Saururaceae Lizardstail PR
Schinus terebinthifolius Brazilian-pepper FL
Scirpus spp. Cyperaceae Bulrush PR
Solanum cardiophyllum Heartleaf Nightshade CA
Solanum carolinense Solanaceae Horsenettle AZ, AR, AK, CA, HI, IA, MI, NV
Solanum dimidiatum Torrey's Nightshade CA
Solanum elaeagnifolium Solanaceae White Horsenettle AR, MI, NV
Solanum nigrum Solanaceae Black Nightshade CO, MI
Solanum rostratum Buffalobur ID
Solanum tampicense Solanaceae Wetland Nightshade FED;  DE, MA, MI, OK
Sparganium erectum Sparganiaceae Exotic Bur Reed FED;  DE, FL, MA, OK
Spartina alterniflora Poaceae Smooth Cordgrass OR, WA
Spartina anglica Poaceae Common Cordgrass OR, WA
Spartina densiflora Poaceae Spartina… OR, WA
Spartina patens Poaceae Saltmeadow Cordgrass OR, WA
Spirodela oligorhiza Lemnaceae Giant Duckweed LA, TX
Spirodela polyrhiza Lemnaceae Giant Duckweed PR
Stachys floridana Lamiaceae Florida Betony NC
Stratiotes aloides Hydrocharitaceae Water-aloe FED;  AL, FL, SC
Thalia geniculata Marantaceae Bent Alligator-Flag PR
Trapa natans Trapaceae Water Chestnut AL, AZ, CT, ID, MA, ME, MI, NH, Nassau County NY, OR, SC, VT, WA, WI, City of Chicago, Canada
Trapa spp. Trapaceae Water Chestnut FL, LA, MI, NC
Typha angustifolia   Narrow-Leaf Cattail restricted WI
Typha x glauca   Cattail Hybrid restricted WI
Typha spp. Typhaceae Cattail PR
Utricularia foliosa Lentibulariaceae Leafy Bladderwort PR
Utricularia inflata Lentibulariaceae Swollen Bladderwort WA
Utricularia spp. Lentibulariaceae Bladderwort PR
Vossia cuspidata Hippo Grass FL
Zizania aquatica Poaceae Annual Wildrice PR
NOTES CHANGES ARE LISTED IN RED
FED = Federal Noxious Weed List (entries are highlighted)
p = permit required
q = quarantine required       
Frequently offered in the trade
Genus spp. listing indicates any / all subspeicies are prohibited.                                                                               For example Typha spp. = any / all Cattails are prohibited to PR. 
Compiled from Federal and State confirmed lists, available online or provided by State agencies. 
Currently accepted names are from the Germplasm Resources Information Network (GRIN) database, USDA, ARS, USDA Plants Database, and Weed Science Society of America Composite List of Weeds
List excludes weeds designated as "Control is county option"
FL list provided by their Department of Agriculture and Consumer Services
FL, NC, SC (as well as many other states) also adopt the list of Federal Noxious Weeds
MN also adopts the list of Federal Parasitic & Terrestrial Noxious Weeds
PR (Puerto Rico) is also regulated as a state.
This list is regularly updated on www.pondtrademag.com 
Please send updates to kelly@marylandaquatic.com 
Compiled by
Kelly Billing, Nursery Manager, Maryland Aquatic Nursery