Suffolk County's Do Not Sell/Transfer List of Invasive List adopted in 2011; effective dates are listed below by species Species assessments are available on http://nyis.info/Resources/IS_Risk_Assessment.aspx

SCIENTIFIC NAME COMMON NAME Date Prohibition Takes Effect in Suffolk County Acer platanoides Norway maple 1/1/2013§ §except cultivars 'crimson king', 'royal red' banned effective 1/1/2016 Acer pseudoplatanus Sycamore maple 1/1/13 Alliaria petiolata Garlic mustard 1/1/09 Ampelopsis brevipedunculata Porcelain berry 1/1/09 Anthriscus sylvestris Wild chervil 1/1/09 Aralia elata Japanese angelica tree 1/1/09 Artemisia vulgaris Mugwort, Common wormwood 1/1/09 Berberis thunbergii (includes all hybrids Japanese barberry 1/1/14 with other Berberis species) Brachypodium sylvaticum Slender false brome 1/1/12 Cabomba caroliniana Carolina fanwort 1/1/09 Cardamine impatiens Narrowleaf bittercress 1/1/09 Celastrus orbiculatus Oriental bittersweet 1/1/09 Centaurea stoebe ssp. micranthos s.l Spotted knapweed, Spotted star- 1/1/09 (biebersteinii, diffusa, xpsammogena, thistle maculosamisapplied) Cirsium arvense Canada thistle 1/1/09 Clematis terniflora Japanese virgin's bower 1/1/11 Cynanchum louiseae (C. nigrum, Black swallow-wort 1/1/09 Vincetoxicum nigrum) Cynanchum rossicum (C. medium, Pale swallow-wort 1/1/09 Vincetoxicum medium, V.rossicum) Dioscorea polystachya Chinese yam; Cinnamon 1/1/12 Egeria densa Brazilian waterweed 1/1/09 Elaeagnus umbellata Autumn olive 1/1/09 Euonymus alatus Winged euonymus 1/1/16 Euonymus fortunei Winter creeper 1/1/13 Euphorbia cyparissias Cypress spurge 1/1/09 Fallopia japonica/ sachalinensis/ Japanese knotweed, Giant 1/1/09 xbohemica (Polygonum cuspidatum knotweed /sachalinense/xboehmicum) Frangula alnus (Rhamnus frangula) Smooth buckthorn 1/1/13 Glyceria maxima (Glyceria grandis var. Tall glyceria, English watergrass, 1/1/12 grandis) Reed mannagrass Humulus japonicus Japanese hops 1/1/09 Hydrilla verticillata Water thyme 1/1/09 Hydrocharis morus-ranae Frogbit 1/1/09 SCIENTIFIC NAME COMMON NAME Date Prohibition Takes Effect in Suffolk County Imperata cylindrica (all except I. c. var. Cogon grass 1/1/12 koenigii 'Red Baron' (syn. 'Rubra')) Iris pseudacorus Yellow iris 1/1/12 Lepidium latifolium Broadleaf pepperweed 1/1/09 Chinese lespedeza 1/1/09 Ligustrum obtusifolium Border privet 1/1/09 Lonicera japonica Japanese honeysuckle 1/1/11 Lonicera maackii Amur honeysuckle 1/1/11 Lonicera morrowii/ tatarica/ xbella Morrow's honeysuckle 1/1/11 Ludwigia grandiflora Uruguayan primrose willow 1/1/09 Ludwigia peploides Floating primrose willow 1/1/09 Lythrum salicaria Purple loosestrife 1/1/09 Microstegium vimineum Japanese stilt grass 1/1/09 sinensis Chinese silver grass; Eulalia 1/1/16 Murdannia keisak Marsh dewflower 1/1/12 Myriophyllum aquaticum Parrot-feather 1/1/09 Myriophyllum heterophyllum and x Broadleaf water-milfoil 1/1/11 M.pinnatum Myriophyllum spicatum Eurasian water-milfoil 1/1/09 Nymphoides peltata Yellow floating heart 1/1/09 Oplismenus hirtellus Wavy basketgrass 1/1/12 Persicaria perfoliata (Polygonum Mile a minute weed 1/1/09 perfoliatum) Phalaris arundinacea (European Reed canary-grass 1/1/09 genotype) Phellodendron amurense/japonicum Amur cork tree 1/1/13 Phragmites australis European common reed 1/1/09 Potamogeton crispus Curly pondweed 1/1/09 Pueraria montana var. lobata Kudzu 1/1/09 Ranunculus ficaria (includes all Lesser celandine 1/1/09 subspecies) Rhamnus cathartica Common buckthorn 1/1/09 Robinia pseudoacacia Black locust 1/1/13 Rosa multiflora Multiflora rose 1/1/09 Rubus phoenicolasius Wineberry 1/1/09 Salix atrocinerea/cinerea Gray florist's willow 1/1/13 Silphium perfoliatum var. perfoliatum Cup- 1/1/09 Trapa natans Water chestnut 1/1/09 Vitex rotundifolia (V. ovata, V. trifolia) Beach vitex 1/1/09