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Advisory Invasive Plant List

Interim List of Invasive Plant Species in New York State

View this report as a PDF document (23 KB)


The primary purpose of this list is to inform New York State agencies so they can incorporate invasive species management into their funding, regulatory and other activities pursuant to ECL 9-1705 (b) and especially ECL 9-1709 (2).This list was not prepared pursuant to ECL 9-1705 (5) (h), the so-called "four-tier system".

This list does not include all plant species that are invasive or potentially-invasive in New York State.

Floating & Submerged Aquatic
Common Name Scientific Name Draft Rank
Water thyme Hydrilla verticillata Very High
Common Frogbit Hydrocharis Morsus-ranae Very High
Floating Primrose Willow Ludwigia peploides Very High
Broadleaf Water-milfoil Myriophyllum heterophyllum Very High
Eurasian Water-milfoil Myriophyllum spicatum Very High
Water Chestnut Trapa natans Very High
Rock Snot (diatom) Didymosphenia geminata Not Ranked
Carolina Fanwort Cabomba caroliniana High
Brazilian Waterweed Egeria densa High
Parrot-feather Myriophyllum aquaticum High
Yellow Floating Heart Nymphoides peltata High
Curly Pondweed Potamogeton crispus High

Emergent Wetland & Littoral
Common Name Scientific Name Draft Rank
Uruguayan Primrose-willow Ludwigia grandiflora spp. hexapetala Very High
Floating Primrose-willow Ludwigia peploides spp. glabrescens Very High
Purple Loosestrife Lythrum salicaria Very High
European Common Reed Grass Phragmites australis Very High
Tall Glyceria Glyceria maxima High
Yellow Iris Iris pseudacorus High
Broad-leaf Pepper-grass Lepidium Latifolium High
Marsh Dewflower Murdannia keisak High
Reed Canary-grass Phalaris arundinacea High

Terrestrial - Herbaceous
Common Name Scientific Name Draft Rank
Garlic Mustard Alliaria petiolata Very High
Slender False Brome Brachypodium sylvaticum Very High
Black Swallow-wort Cynanchum louiseae Very High
Pale Swallow-wort Cynanchum rossicum Very High
Japanese Knotweed Fallopia japonica Very High
Japanese Stilt Grass Microstegium vimineum Very High
Lesser Celandine Ranunculus ficaria Very High
Wild Chervil Anthriscus sylvestris High
Mugwort Artemisia vulgaris High
Small Carpgrass Arthraxon hispidus High
Narrowleaf Bittercress Cardamine impatiens High
Spotted Knapweed* Centaurea stoebe ssp. micranthos High
Canada Thistle Cirsium arvense High
Chinese Yam Dioscorea polystachya High
Cut-leaf Teasel Dipsacus laciniatus High
Winter Creeper Euonymus fortunei High
Cypress Spurge Euphorbia cyparissias High
Leafy Spurge Euphorbia esula High
Giant Hogweed Heracleum mantegazzianum High
Japanese Hops Humulus japonicus High
Cogon Grass Imperata cylindrica High
Chinese Lespedeza Lespedeza cuneata High
Garden Loosestrife Lysimachia vulgaris High
Chinese Sliver Grass Miscanthus sinensis High
Wavyleaf Basketgrass Oplismensus hirtellus High
Cup-plant Silphium perfoliatum High

Terrestrial - Vines
Common Name Scientific Name Draft Rank
Oriental Bittersweet Celastrus orbiculatus Very High
Japanese Honeysuckle Lonicera japonica Very High
Mile-a-minute Weed Persicaria perfoliata Very High
Kudzu Pueraria montana var. lobata Very High
Porcelain Berry Ampelopsis brevipedunculata High
Japanese Virgin's-bower Cematis terniflora High

Terrestrial - Shrubs & Trees
Common Name Scientific Name Draft Rank
Norway Maple Acer platanoides Very High
Japanese Angelica Tree Aralia elata Very High
Japanese Barberry Berberis thunbergii Very High
Autumn Olive Elaegnus umbellata Very High
Winged Euonymus Euonymus alatus Very High
Amur Honeysuckle Lonicera maackii Very High
Morrow's Honeysuckle Lonicera morrowii (incl. x bella) Very High
Common Buckthorn Rhamnus cathartica Very High
Black Locust Robinia pseudoacacia Very High
Multiflora Rose Rosa multiflora Very High
Wineberry Rubus phoenicolasius Very High
Rusty Willow Salix atrocinerea Very High
Sycamore Maple Acer pseudoplatanus High
Smooth Buckthorn Frangula alnus High
Border Privet Ligustrum obtusifolium High
Amur Cork Tree Phellodendron amurense High
Beach Vitex Vitex rotundifolia High

* Brown and Black Knapweed have also been known to be problematic in grassland habitats.

  • Contact for this Page
  • Invasive Species Coordination Unit
    Div of Lands & Forests
    625 Broadway
    Albany, NY 12233-4250
    Send us an email
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