Regulated Species

Prohibited Terrestrial Plants   |   Prohibited Wetland Plants   |   Prohibited Aquatic Plants   |   Regulated Plants

Prohibited Algae and Cyanobacteria   |   Regulated Algae and Cyanobacteria

Prohibited Fish

Prohibited Aquatic Invertebrates

Questions and Answers

What are invasive species?

Invasive species means a species that is nonnative to a particular ecosystem, and whose introduction causes or is likely to cause economic or environmental harm or harm to human health.

Why are invasive species a problem?

Invasive species can harm natural communities and systems (plants and animals found in particular physical environments) by out-competing native species, reducing biological diversity, altering community structure and, in some cases, changing ecosystems. Invasive species threaten New York’s food supply, not only agriculture but also harvested wildlife, fish and shellfish; our landscaping, parks, gardens, and pets; and our recreation resources and even animal and human health. All New Yorkers have a stake in the invasive species issue.

How will these regulations help?

These regulations are to help control invasive species by reducing the introduction and spread of them by limiting commerce in such species. By preventing introduction of new invasive species, New York will save time, effort, and money in the future.

How were the lists included in the regulations developed?

The lists of prohibited and regulated species were developed using the species assessment and listing process outlined in the 2010 report, “A Regulatory System for Non-Native Species.”

A Regulatory System for Non-Native Species

When will the regulations be implemented?

The final regulations (or a summary) were published in the State Register September 10, 2014, they become effective 6 months thereafter.

What is the difference between prohibited and regulated invasive species?

Prohibited invasive species cannot be knowingly possessed with the intent to sell, import, purchase, transport or introduce. In addition, no person shall sell, import, purchase, transport, introduce or propagate prohibited invasive species. Regulated invasive species, on the other hand, are species which cannot be knowingly introduced into a free-living state, or introduced by a means that one should have known would lead to such an introduction, although such species shall be legal to possess, sell, buy, propagate and transport.

What species have grace periods established in the regulations?

A one-year grace period is included in the regulations for Japanese Barberry (Berberis thunbergii), during which existing stock of this species may be sold.

Who will enforce the regulations?

The regulations will be enforced by the Department of Environmental Conservation, with assistance from the Department of Agriculture and Markets.

The rules may be viewed by visiting the NYS DEC  Division of Lands and Forests regulations web page.  Also see the New York State Register Notice of Adoption below.

Division of Lands and Forests Regulations

New York State Register, September 10, 2014, Part 575 Notice of Adoption

See the 14-page, full-color brochure, list of species, and frequently asked questions.

Prohibited and Regulated Plants in New York (Web quality, 19 MB)

List of Prohibited and Regulated Species and Frequently Asked Questions about Part 575



Acer pseudoplatanus Sycamore Maple
Achyranthes japonica Japanese Chaff Flower
Alliaria petiolata Garlic Mustard
Ampelopsis brevipedunculata Porcelain Berry
Anthriscus sylvestris Wild Chervil
Aralia elata Japanese Angelica Tree
Artemisia vulgaris Mugwort
Arthraxon hispidus Small Carpetgrass
Berberis thunbergii Japanese Barberry
Brachypodium sylvaticum Slender False Brome
Cardamine impatiens Narrowleaf Bittercress
Celastrus orbiculatus Oriental Bittersweet
Centaurea stoebe (C. biebersteinii, C. diffusa, C. maculosa misapplied, C. xpsammogena) Spotted Knapweed
Cirsium arvense (C. setosum, C. incanum, Serratula arvensis) Canada Thistle
Cynanchum louiseae (C. nigrum, Vincetoxicum nigrum) Black Swallow-wort
Cynanchum rossicum (C. medium, Vincetoxicum medium, V. rossicum) Pale Swallow-wort
Dioscorea polystachya (D. batatas) Chinese Yam
Dipsacus laciniatus Cut-leaf Teasel
Elaeagnus umbellata Autumn Olive
Euphorbia cyparissias Cypress Spurge
Euphorbia esula Leafy Spurge
Ficaria verna (Ranunculus ficaria) Lesser Celandine
Heracleum mantegazzianum Giant Hogweed
Humulus japonicus Japanese Hops
Imperata cylindrica (I. arundinacea, Lagurus cylindricus) Cogon Grass
Lepidium latifolium Broad-leaved Pepper-grass
Lespedeza cuneata Chinese Lespedeza
Ligustrum obtusifolium Border Privet
Lonicera japonica Japanese Honeysuckle
Lonicera maackii Amur Honeysuckle
Lonicera morrowii Morrow’s Honeysuckle
Lonicera tatarica Tartarian Honeysuckle
Lonicera x bella Fly Honeysuckle
Lysimachia vulgaris Garden Loosestrife
Microstegium vimineum Japanese Stilt Grass
Oplismenus hirtellus Wavyleaf Basketgrass
Persicaria perfoliata (Polygonum perfoliatum) Mile-a-minute Weed
Phellodendron amurense Amur Cork Tree
Phyllostachys aurea Golden Bamboo
Phyllostachys aureosulcata Yellow Groove Bamboo
Pueraria montana Kudzu
Reynoutria japonica (Fallopia japonica, Polygonum cuspidatum) Japanese Knotweed
Reynoutria sachalinensis (Fallopia sachalinensis, Polygonum sachalinensis) Giant Knotweed
Reynoutria x bohemica (Fallopia x bohemica, Polygonum x bohemica) Bohemian Knotweed
Rhamnus cathartica Common Buckthorn
Rosa multiflora Multiflora Rose
Rubus phoenicolasius Wineberry
Salix atrocinerea Gray Florist’s Willow
Silphium perfoliatum Cup-plant
Vitex rotundifolia Beach Vitex
Frangula alnus (Rhamnus frangula) Smooth Buckthorn
Glyceria maxima Reed Manna Grass
Iris pseudacorus Yellow Iris
Lythrum salicaria Purple Loosestrife
Murdannia keisak Marsh Dewflower
Phragmites australis Common Reed Grass
Cabomba caroliniana Fanwort
Egeria densa Brazilian Waterweed
Hydrilla verticillata  Hydrilla/ Water Thyme
Hydrocharis morsus-ranae Frogbit
Ludwigia hexapetala (L. grandiflora) Uruguayan Primrose Willow
Ludwigia peploides Floating Primrose Willow
Myriophyllum aquaticum Parrot-feather
Myriophyllum heterophyllum x M. laxum Broadleaf Water-milfoil Hybrid
Myriophyllum spicatum Eurasian Water-milfoil
Nymphoides peltata Yellow Floating Heart
Potamogeton crispus Curly Pondweed
Trapa natans Water Chestnut
Acer platanoides Norway Maple
Clematis terniflora Japanese Virgin’s Bower
Euonymus alatus Burning Bush
Euonymus fortunei Winter Creeper
Miscanthus sinensis Chinese Silver Grass
Robinia pseudoacacia Black Locust


Caulerpa taxifolia Killer Green Algae
Didymosphenia geminata Didymo
Prymnesium parvum Golden Algae
Cylindrospermopsis raciborskii Cylindro
(ii) Grateloupia turuturu Red Algae
Channa argus Northern Snakehead
Channa marulius Bullseye Snakehead
Channa micropeltes Giant Snakehead
Clarias batrachus Walking Catfish
Gambusia affinis Western Mosquitofish
Gambusia holbrooki Eastern Mosquitofish
Hypophthalmichthys harmandi Largescale Silver Carp
Hypophthalmichthys molitrix Silver Carp
Hypophthalmichthys nobilis Bighead Carp
Misgurnus anguillicaudatus Oriental Weatherfish
Mylopharyngodon piceus Black Carp
Neogobius melanostomus Round Goby
Petromyzon marinus Sea Lamprey
Proterorhinus semilunaris (P. marmoratus) Tubenose Goby
Tinca tinca Tench
Bellamya chinensis (Cipangopaludina chinensis) Chinese Mystery Snail
Bellamya japonica Japanese Mystery Snail
Bithynia tentaculata Faucet Snail
Bythotrephes longimanus (B. cederstroemi) Spiny Water Flea
Cercopagis pengoi Fishhook Water Flea
Corbicula fluminea Asian Clam
Crassostrea ariakensis Suminoe Oyster
Didemnum spp. Carpet Tunicate
Dreissena polymorpha Zebra Mussel
Dreissena rostriformis bugensis Quagga Mussel
Eriocheir sinensis Chinese Mitten Crab
Hemigrapsus sanguineus Asian Shore Crab
Hemimysis anomala Bloody Red Shrimp
Orconectes rusticus Rusty Crayfish
Potamopyrgus antipodarum New Zealand Mud Snail
Rapana venosa Veined Rapa Whelk
Styela plicata Asian Sea Squirt