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Postby Admin » Tue May 06, 2014 11:58 am

Combined Federal and State Lists

Please send updates to

Compiled by
Kelly Billing, Maryland Aquatic Nurseries, Inc.

update April 2013

Common Name Scientific Name States and/or Federal

Flowering Rush Butomus umbellatus CT, ID, MI, MT, NH, OR, VT, WA, restricted WI, City of Chicago
Taro Colocasia spp. HI (p) (q)
Anacharis / Brazilian Elodea Egeria (Elodea) densa AL, CA, CT, ID, IN, MA, ME, MI, NC, NH, Long Island NY , OR, PR, SC, VT, WA, WI, City of Chicago
Anacharis najas Egeria najas CA
Anchored Water hyacinth Eichhornia azurea FED; AR, AZ, LA, MA, NE, OK, OR, TX, WV
Water hyacinth Eichhornia crassipes AL, AR, AZ, CA county regulated, LA, NE, PR, SC, TX, City of Chicago...(Minnesota and WI considering a ban)
Waterhyacinth Eichhornia spp. FL
Giant Horsetail Equisetum telmateia OR
Houttuynia cordata City of Chicago Chameleon Plant Houttuynia cordata 'Variegata' City of Chicago
Frogbit Hydrocharis morsus-ranae CA, ID, ME, MI, NH, Long Island NY , VT, WA, WI, City of Chicago
Yellow Flag Iris Iris pseudacorus CT, ID, MA, MT, Long Island NY 1/1/2012 , OR, VT, WA, City of Chicago
American Frogbit Limnobium spongia CA, PR
Creeping Jenny Lysimachia nummularia MA, Long Island NY
Dwarf Four Leaf Clover Marsilea minuta OK
Variegated Four Leaf Clover Marsilea mutica OK
Four Leaf Clover Marsilea quadrifolia CT, OK, Canada
Aquatic Mint Mentha aquatica ID(q), MT(q), NE(q), WY(q)
Giant Sensitive Plant Mimosa pigra FL
Parrotfeather Myriophyllum aquaticum AL, CA county regulated, CT, ID, MA ,ME, MI, NV, NH, Long Island NY , OR, VT, WA, WI, PR, City of Chicago, Canada
American Lotus Nelumbo lutea CT, PR
Yellow Floating Heart Nymphoides peltata CT, ID, MA, ME, MI, NH, Long Island NY , OR, VT, WA, WI, Canada
Candy Stripe Reed Phragmites australis 'Candy Stripe' CT, MA, MI, NC, VT
Water Lettuce Pistia spp. SC
Waterlettuce Pistia stratiotes AL, CA county regulated, CT, FL, LA, PR, SC, TX
Pickerel Rush Pontederia cordata CA, PR
Pickerelweed Pontederia spp. LA
Water Dock / Bloody Dock Rumex spp. AR
Arrowhead Sagittaria sagittifolia FED; MA, NC, OK, WV, Canada
Salvinia Salvinia auriculata FED; CA, MA, MI, OK, VT, WV
Giant Salvinia Salvinia biloba FED; CA, MA, OK, VT, WV
Giant Salvinia Salvinia herzogii FED; CA, MA, MI, OK, VT, WV
Giant Salvinia Salvinia molesta FED; AR, AZ, CA, CO, CT, ID, MA, MD, MI, MS, NV, OK, OR, TN, VT, WV
Giant Duckweed Spirodela oligorhiza LA, TX
Narrow-Leaf Cattail Typha angustifolia restricted WI
Cattail Hybrid Typha x glauca restricted WI
508 533 5969
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Postby Admin » Tue May 06, 2014 12:31 pm

the same site had this as a Question and Answer:

Q: I�m getting more and more frustrated by uncertain and conflicting information about invasive plants. It seems that governments, both Federal and State, are starting to crack down on individual businesses. However often there is only incomplete inform

You�re right, frequently there is conflicting, incomplete, or out-dated information. Even worse, there is no single source for accurate listings. Since our industry definitely needs this kind of resource, I was motivated to compile something that would be helpful and accurate. It wasn�t long before I realized that creating a master list for publication was definitely a bigger challenge than I had ever imagined. Uncertainties and obstacles arouse almost immediately.

Let�s start with the Federal level. The Federal Noxious Weed List (FNWL) was last updated in September 2000 and can be easily found at under the Plant Protection and Quarantine page. This seems simple enough, except that the FNWL found at ... oxious.cgi is an invalid list last updated in 1999. Go figure � it pays to be careful when checking sources since some sites have invalid or outdated lists.

Most State lists also include the Federally prohibited plants while some States use only the Federal list. Other States have not officially adopted the FNWL but require a permit from the USDA before plants on the list can be moved into their State. Plants listed on the FNWL are not State regulated or enforced unless also included on the State list.

Obtaining complete and accurate State Lists was, on the other hand, a more difficult task for many reasons.

The formal chain of command for State legislation as it applies to noxious weeds is as follows:
1. The State Government determines a plant to be prohibited from sale or have restrictions on import, distribution, or possession (except by permit) within their boundaries, sighting it as a noxious weed.
2. The updated plant list for that state is to be forwarded to the National Plant Board (NPB) for posting on their website (This is the responsibility of the individual States.)
3. The NPB site is supposed to be THE authoritative source for ALL State Nursery Inspectors across the country.

Unfortunately, that�s not always what happens. For example, Alabama has prohibited the sale of Myriophyllum aquaticum in their state since August 2000. Check the NPB site and it is not listed as prohibited even though the NPB updated in December 2000. Alabama�s own web site does not have an available list of noxious weeds. They are not alone; many of the State sites do not post a list.

Remember, ignorance of the law is not a valid excuse. Our State of Maryland Inspector did say he would go to bat for us in the event we did ship Myriophyllum aquaticum to Alabama unknowingly and that we would more than likely win the battle.

But � Washington State added new plants to their prohibited list, effective January 2001, that are still not posted to NPB site. Since they are posted on Washington�s site, we would be liable for shipping prohibited plants to Washington because the information has been made available to the public. (What exactly constitutes �made available�?)

And � Florida publishes a list of Most Wanted �Outlaw� invasive aquatic and wetland plants. The unsuspecting consumer, retailer, or grower (myself included) might be led to believe that they are on Florida�s prohibited list. In fact some are and some aren�t. Florida is not alone; other States publish similar plant pest/weed lists. Pay careful attention to the wording of information when researching.

The most difficult part of this seemingly never ending project was weeding out the inaccurate information. Wyoming shed some light on another reason for confusion. Their own web site (as well as many others) produces different lists from different queries. The reason is some plants have restrictions by county and/or by State. The list will also vary depending on whether the restriction is a ruling, statute, or law, and which branch of government it falls under. Additionally it may depend upon whether the noxious weed restriction is for the plant or the seed.

Even more problems are created because noxious weed lists are not always maintained by the States� Department of Agriculture. Sometimes they fall under the Department of Wildlife and Fisheries, the Department of the Environment, the Department of Natural Resources, or another branch of government.

More conflicts arose from �comprehensive� sites that seemed to have everything in one place. The noxious weed list on Maryland�s web site is a link to the INVADERS Database System posted by the Agricultural Research System and the USDA. I was sure I had a great find since I could search every State from a single site. So I printed a few for comparison and found that most of the lists did not match or even come close to the list faxed to me by that State. (Could that be because the ruling, statute, law, seed, or plant �thing� generated mixed information for the queries?)

To get around all these ambiguous situations I faxed a request to the States without current information available on their web site. My request to them was to provide a confirmed list of aquatic plants they regulate as noxious weeds. The replies I received provided the core of my �Regulated Noxious Aquatic Weeds� list. When clarification was needed, I chose the faxed information as the official version.

A complete accounting of the researched information has been compiled into two lists. The first is the �State & Federal Contacts for Invasive Aquatic Plant Information.� The second is a list of �Regulated Noxious Aquatic Weeds� and their restrictions by State. I cannot assure absolute accuracy, but I am confident this is a far better accounting than previously available. Both lists can be found in PONDKEEPER Magazine�s Annual Buyers� Guide and PONDKEEPER has generously offered to post a perpetual work in progress list on their website,

This raises some interesting questions to the industry as a whole:

How often is the USDA and National Plant Board site updated?

If the industry makes every effort to regulate itself, how much effort will be placed on each company that ships interstate? Will each have to come up with a complete and accurate accounting of prohibited or restricted plants to individual states if the formal chain of command is not followed in a timely manner?

Can we rely on industry volunteerism to be the source of current information for new plant restrictions in various states?

Could a corner of Pondkeeper magazine be dedicated to announcing new additions to the list/s?
Editor�s note: Yes, consider it done. As information is faxed or emailed to us, it will be published.

Should the same information be published in other trade magazines and/or journals?

Would the publicity of prohibited and restricted plants have an impact on their sales in states where they are not prohibited? How could it effect the industry�s reputation?

How involved in the process does the industry want to become?

Now I seem to have raised more questions than I answered. Any feedback out there????


Kelly Billing
Nursery Manager
Maryland Aquatic Nurseries, Inc.

Special Thanks to:
Steve Malan
Maryland Department of Agriculture
508 533 5969
Site Admin
Posts: 10420
Joined: Mon Apr 26, 2004 11:16 am
Location: Millis MA


Postby Admin » Tue May 06, 2014 1:17 pm ... -list.html

aeginetia Aeginetia spp.
African boxthorn Lycium ferrocissimum
African couch grass Digitaria abyssinica; D. scalarum
African feathergrass Pennisetum macrourum
alectra Alectra spp.
alfombrilla Drymaria arenarioides
ambulia Limnophila sessiliflora
Amur cork-tree Phellodendron amurense
Amur _ Lonicera maackii
anchored water hyacinth Eichhornia azurea
animated oat Avena sterilis
Argentine screwbean Prosopis strombulifera
arrowhead Sagittaria sagittifolia
Asian sprangletop Leptochloa chinensis
autumn olive Elaeagnus umbellata
Bell s _ Lonicera x bella
[L. morrowii x L. tatarica]
Benghal dayflower Commelina benghalensis
Bishop's weed; goutweed Aegopodium podagraria
black locust Robinia pseudoacacia
black swallow-wort; Louise's swallow-wort Cynanchum louiseae
Border privet Ligustrum obtusifolium
borreria Spermacoce alata
Brazilian satintail Imperata brasiliensis
anacharis, Brazilian waterweed; Brazilian elodea Egeria densa; Elodea densa; Anacharis densa
brittle water-nymph; lesser naiad Najas minor
broad-leafed pepperweed; tall pepperweed Lepidium latifolium
broomrape Orobanche spp.
brownbeard rice; red rice Oryza rufipogon
burning bush; winged euonymus Euonymus alatus
bushy rock-cress; narrowleaf bittercress Cardamine impatiens
Cape tulip Homeria spp.; Morea spp.
Carolina Fanwort; fanwort Cabomba caroliniana
catclaw mimosa Mimosa pigra
cattail grass; yellow foxtail Setaria pallidifusca; S. pallidefusca; S. pumila
caulerpa Caulerpa taxifolia
Chinese waterspinach
*Permit required - contact Department* Ipomoea aquatica
coat buttons Tridax procumbens
coltsfoot Tussilago farfara
common barberry; European barberry Berberis vulgaris
common buckthorn Rhamnus cathartica
common crupina Crupina vulgaris
common reed Phragmites australis
creeping buttercup Ranunculus repens
creeping Jenny; moneywort Lysimachia nummularia
crisped pondweed; curly pondweed Potamogeton crispus
crofton weed Ageratina adenophora
Cypress spurge Euphorbia cyparissias
Dames Rocket Hesperis matronalis
devil's thorn Emex spinosa
dodder Cuscuta spp.
duck-lettuce Ottelia alismoides
Eurasian or European water-milfoil; Spike water-milfoil Myriophyllum spicatum
European buckthorn; glossy buckthorn Frangula alnus; Rhamnus frangula
exotic bur-reed Sparganium erectum
forget-me-not Myosotis scorpioides
garlic mustard Alliaria petiolata
giant false sensitive plant; false sensitive plant Mimosa diplotricha; M. invisa
giant hogweed Heracleum mantegazzianum
giant salvinia; eared watermoss Salvinia auriculata
giant salvinia; kariba-weed Salvinia molesta
giant salvinia Salvinia biloba
giant salvinia Salvinia herzogii
goatsrue Galega officinalis
hair fescue; fineleaf sheep fescue Festuca filiformis
hairy joint grass; jointhead; small carpetgrass Arthraxon hispidus
hairy willow-herb; Codlins and Cream Epilobium hirsutum
horned poppy; sea poppy; yellow hornpoppy Glaucium flavum
hydrilla; water-thyme; Florida elodea Hydrilla verticillata
itchgrass Rottboellia cochinchinensis
Japanese Barberry Berberis thunbergii
Japanese _ Lonicera japonica
Japanese hops Humulus japonicus
Japanese knotweed Polygonum cuspidatum; Fallopia japonica
Japanese sedge; Asiatic sand sedge Carex kobomugi
Japanese stiltgrass; Nepalese browntop Microstegium vimineum
jointed prickly pear Opuntia aurantiaca
kiawe Prosopis pallida
kikuyugrass Pennisetum clandestinum
Kodo-millet Paspalum scrobiculatum
kudzu; Japanese arrowroot Pueraria montana
Kyasuma grass Pennisetum pedicellatum
leafy Spurge; Wolf's Milk Euphorbia esula
lesser celandine; fig buttercup Ranunculus ficaria
liverseed grass Urochloa panicoides
longstamen rice; red rice Oryza longistaminata
Malabar melastome Melastoma malabathricum
melaleuca Melaleuca quinquenervia
mile-a-minute vine or weed; Asiatic Tearthumb Polygonum perfoliatum, Persicaria perfoliata
mile-a-minute; bittervine Mikania micrantha
mile-a-minute; heartleaf hempvine Mikania cordata
Miramar weed Hygrophila polysperma
missiongrass Pennisetum polystachyon; P. polystachion
monochoria Monochoria hastata
Morrow s _ Lonicera morrowii
mosquito fern Azolla pinnata
multiflora rose Rosa multiflora
murain-grass Ischaemum rugosum
Norway maple Acer platanoides
onion weed Asphodelus fistulosus
Oriental or Asiatic bittersweet Celastrus orbiculatus
oxygen weed Lagarosiphon major
pale swallow-wort Cynanchum rossicum
parrot-feather; water-feather; Brazilian water-milfoil Myriophyllum aquaticum
pickerel weed Monochoria ___
pilipiliula Chrysopogon aciculatus
plume grass; Amur silvergrass Miscanthus sacchariflorus
(also covers Miscanthus x giganteus, a hybrid of M. sacchariflorus and M. sinensis)
porcelain-berry; Amur peppervine Ampelopsis brevipedunculata
purple loosestrife Lythrum salicaria
red rice Oryza punctata
reed canary-grass, ribbon grass Phalaris arundinacea
serrated tussock Nassella trichotoma
sessile joyweed Alternanthera sessilis
spotted knapweed Centaurea biebersteinii; C. stoebe ssp. micranthos
sycamore maple Acer pseudoplatanus
tall mannagrass; reed mannagrass Glyceria maxima
tansy ragwort; stinking Willie Senecio jacobaea
Tatarian _ Lonicera tatarica
three-cornered jack Emex australis
tornillo Prosopis reptans
tree of heaven Ailanthus altissima
tropical soda apple Solanum viarum
turkeyberry Solanum torvum
variable water-milfoil; two-leaved water-milfoil Myriophyllum heterophyllum
velvet fingergrass Digitaria velutina
velvet mesquite Prosopis velutina
water yellowcress; great yellowcress Rorippa amphibia
water-chestnut Trapa natans
wetland nightshade Solanum tampicense
wild blackberry complex Rubus fruticosus
wild blackberry Rubus moluccanus
wild chervil Anthriscus sylvestris
wild safflower; jeweled distaff thistle Carthamus oxyacanthus; C. oxycantha
wild sugarcane Saccharum spontaneum
wineberry; Japanese wineberry; wine raspberry Rubus phoenicolasius
witchweed Striga spp.
wormleaf salsola Salsola vermiculata
yellow floating heart Nymphoides peltata
yellow Iris Iris pseudacorus
508 533 5969
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Posts: 10420
Joined: Mon Apr 26, 2004 11:16 am
Location: Millis MA

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