Invasive species of Union concern
Click here to download the full list of 88 Invasive Alien Species of Union concern.
![](https://invasives.ie/app/uploads/2021/09/ias_graphic_082020_CROP-300x210.png)
See Frequently Asked Questions on the EU IAS Regulation issued by NPWS: https://www.npws.ie/sites/default/files/files/FAQ%20(Ireland).pdf
View the European Commission’s Invasive Alien Species Regulation website. An excellent brochure on all 88 Invasive Alien Species of Union concern is available to download just under the heading ‘Consolidated List of Invasive Alien Species of Union concern’.
EU risk assessments used to underpin decision making on regulation listing of species as Invasive Alien Species of Union concern can be accessed from: CIRCABC – Biblioteka (europa.eu)
Species recorded in Ireland and established
Click on image to access species profile information. If you spot any errors or have information that can add to the species profiles please let us know. E-mail: [email protected]
![Giant Hogweed](https://invasives.ie/app/uploads/2021/09/Spraying-of-giant-hogweed-Tom-Richards_Wye-and-Usk-Foundation-600x466-1-150x150.jpg)
![Grey Squirrel](https://invasives.ie/app/uploads/2021/09/No-tufts-of-hair-coming-from-ears-a-distingushing-feature-of-the-red-squirrel-Shutterstock-150x150.jpg)
![](https://invasives.ie/app/uploads/2021/08/Impatiens-glandulifera-Colette-OFlynn-1-1024x781-1-150x150.jpg)
![](https://invasives.ie/app/uploads/2022/09/Himalyan-knotweed-150x150.jpg)
![Nuttall's Waterweed](https://invasives.ie/app/uploads/2021/09/Elodea-nuttallii-GB-NNSS-and-British-Waterways-150x150.jpg)
![New Zealand Flatworm](https://invasives.ie/app/uploads/2021/09/Arthurdendyus-triangulata-Aisling-Nic-an-tSithigh-1-600x400-1-150x150.jpg)
![Parrot's feather](https://invasives.ie/app/uploads/2021/09/Myriophyllum-aquaticum-pressed-Colette-O-Flynn-150x150.jpg)
![](https://invasives.ie/app/uploads/2021/10/Hydrocotyle-ranunculoides_NNSS-150x150.jpg)
![Curly Waterweed](https://invasives.ie/app/uploads/2021/09/Lagarosiphon-major_Colette-OFlynn_resized-150x150.jpg)
![Chinese Mitten Crab](https://invasives.ie/app/uploads/2021/09/Chinese-mitten-crab-showing-hair-around-claws-Shutterstock-150x150.jpg)
![American Skunk Cabbage](https://invasives.ie/app/uploads/2021/09/Lysichiton-americanus-Colette-O-Flynn1-150x150.jpg)
![Giant Chilean Rhubarb](https://invasives.ie/app/uploads/2021/09/G.tinctoria_Connemara_COFb-150x150.jpg)
Species recorded in Ireland in recent years but are not known to be established
![Asian Hornet](https://invasives.ie/app/uploads/2021/09/AsianHornet_JeanHaxaire_GNBBSS-2-150x150.jpg)
![Coypu](https://invasives.ie/app/uploads/2021/09/Myocastor-coupys_Shutterstock_PurchasedForUSe-1-150x150.jpg)
![Egyptian Goose](https://invasives.ie/app/uploads/2021/09/EgyptianGoose_-Lip-Kee-Yap_CC-BY-SA-2.0-150x150.jpg)
![Indian house crow](https://invasives.ie/app/uploads/2021/09/Indian-House-crow_Michael-clarke-stuff_CC-BY-SA-2.0--150x150.jpg)
![Muntjac Deer](https://invasives.ie/app/uploads/2021/09/Muntiacus-reevesi-GB-NNSS-Taxidermy-specimen-150x150.jpg)
![Muskrat](https://invasives.ie/app/uploads/2021/09/Musk-rat_Mary-Brady-150x150.jpg)
![Racoon](https://invasives.ie/app/uploads/2021/09/Racoon_Shutterstock_Purchasedforuse-1-150x150.jpg)
![Ruddy Duck](https://invasives.ie/app/uploads/2021/09/Oxyura-jamaicensis_GB-NNSS-150x150.jpg)
![Sacred ibis](https://invasives.ie/app/uploads/2021/09/SacredIbis_Steve-Garvie-from-Dunfermline-Fife-Scotland_CC-BY-SA-2.0--150x150.jpg)
![Siberian Chipmunk](https://invasives.ie/app/uploads/2021/09/Tamias-sibiricus_Shutterstock_RESIZED_Purchasedforuse-150x150.jpg)
![Terrapins / Sliders](https://invasives.ie/app/uploads/2021/09/Trachemys-scripta-elegans-Shay-Connolly-150x150.jpg)
![](https://invasives.ie/app/uploads/2021/10/Ailanthus-altissima_RPS-group-Pl-150x150.jpg)
![Water primrose](https://invasives.ie/app/uploads/2021/09/Ludwigia-grandiflora-Joe-Caffrey_1-150x150.jpg)
Species not recorded in Ireland
– Animals
![Virile Crayfish](https://invasives.ie/app/uploads/2021/09/VirileCrayfish_D.-Gordon-E.-Robertson_Own-work_CC-BY-SA-3.0-150x150.jpg)
![Spiny-Cheek Crayfish](https://invasives.ie/app/uploads/2021/09/Spiny-cheek-crayfish_Casey-D.-Swecker-150x150.jpg)
![Signal Crayfish](https://invasives.ie/app/uploads/2021/09/Signal-Crayfish_showing-flash-of-white-at-finger-joint_Shutterstock-150x150.jpg)
![Red Swamp Crayfish](https://invasives.ie/app/uploads/2021/09/Procambarus_clarkii_Duloup_CC-BY-SA-3.0-150x150.jpg)
![Marbled Crayfish](https://invasives.ie/app/uploads/2021/09/MarbledCrayfish_Cefas_CrownCopyright2009-1-150x150.jpg)
![USFWS - Pacific Region, Public domain, via Wikimedia Commons](https://invasives.ie/app/uploads/2022/09/Faxonius_rusticus--150x150.jpg)
![MarshBunny, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons](https://invasives.ie/app/uploads/2022/09/G-holbrooki-150x150.jpg)
![Jon McIntyre at iNaturalist CC BY NC 4.0 <https://www.inaturalist.org/photos/174558146>](https://invasives.ie/app/uploads/2022/09/medium-150x150.jpeg)
![Stone Moroko](https://invasives.ie/app/uploads/2021/09/Stone_moroko_Melania_Own-work_CC-BY-3.0-via-Wikimedia-Commons-150x150.jpg)
![Tim Emhoff at iNaturalist, CC BY 4.0 <https://www.inaturalist.org/observations/108126346>](https://invasives.ie/app/uploads/2022/09/Mummichog-httpswww.inaturalist.orgobservations108126346-150x150.jpg)
![South American Coati](https://invasives.ie/app/uploads/2021/09/SouthAmericanCoati_Vassil_Own-work_Public-domain_Wikimedia-Commons-150x150.jpg)
![Raccoon Dog](https://invasives.ie/app/uploads/2021/09/RaccoonDog_Pkuczynski_-CC-BY-SA-3.0_via-Wikimedia-Commons-150x150.jpg)
![Pallas's Squirrel](https://invasives.ie/app/uploads/2021/09/Pallass-Squirrel_David_Blank_CC_Attribution-Noncommercial-Share-Alike_3.0-150x150.jpg)
![North American Bullfrog](https://invasives.ie/app/uploads/2021/09/North-American-bullfrog_Carl.-D.-Howe-CC-BY-SA-2.5-150x150.jpg)
![Rushenb CC BY-SA 3.0, httpscommons.wikimedia.orgwindex.phpcurid=33630799](https://invasives.ie/app/uploads/2022/09/Rushenb-CC-BY-SA-3.0-httpscommons.wikimedia.orgwindex.phpcurid33630799-1-150x150.jpg)
![T. R. Shankar Raman - CC BY-SA 4.0 httpscommons.wikimedia.orgwikiUserShankar_Raman#mediaFileA_chital_stag](https://invasives.ie/app/uploads/2022/09/T.-R.-Shankar-Raman-CC-BY-SA-4.0-httpscommons.wikimedia.orgwikiUserShankar_RamanmediaFileA_chital_stag_1.JPG-150x150.jpg)
![By Chung Bill Bill (http://www.flickr.com/photos/bilbill/8261170848/) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons](https://invasives.ie/app/uploads/2022/09/Asian-mongoose-150x150.jpg)
![Amur Sleeper](https://invasives.ie/app/uploads/2021/09/AmurSleeper_By-Petrtyl_Own-work_CC-BY-SA_3.0-150x150.jpg)
![](https://invasives.ie/app/uploads/2021/10/Acridotheres-tristis_-©-Graham-Winterflood-CC-BY-SA-3.0-via-Flickr.com_-150x150.png)
![Charles J. Sharp, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons](https://invasives.ie/app/uploads/2022/09/Red-vented_bulbul_Pycnonotus_cafer_haemorrhousus-150x150.jpg)
![Brian Gratwicke, CC BY 2.0 <https://creativecommons.org/licenses/by/2.0>, via Wikimedia Commons](https://invasives.ie/app/uploads/2022/09/Snakehead-fish-150x150.jpg)
![© Gonçalo Fernandes, iNaturalist CC BY NC at <https://www.inaturalist.org/photos/180755117> via GBIF](https://invasives.ie/app/uploads/2022/09/Black-bullhead-catfish-150x150.jpg)
![Cephas, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons](https://invasives.ie/app/uploads/2022/09/Morone_americana_PAQcropped-150x150.jpg)
![](https://invasives.ie/app/uploads/2021/10/Plotosus-lineatus_-©-zsispeo-CC-BY-SA-2.0-via-Flickr.com_-150x150.png)
![Cephas, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons](https://invasives.ie/app/uploads/2022/09/Lepomis_gibbosus_PAQ-cropped-150x150.jpg)
![Brian Gratwicke, CC BY 2.0 <https://creativecommons.org/licenses/by/2.0>, via Wikimedia Commons](https://invasives.ie/app/uploads/2022/09/Xenopus_laevis_02-150x150.jpg)
![Glenn Bartolotti, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons](https://invasives.ie/app/uploads/2022/09/Dixie_County_Florida_Kingsnake-150x150.jpg)
![anneveleones at iNaturalist CC BY NC <https://www.inaturalist.org/photos/193577885>, via GBIF](https://invasives.ie/app/uploads/2022/09/Tropical-fire-ant-150x150.jpg)
![Joe MDO at iNaturalist CC BY NC 4.0 <https://www.inaturalist.org/photos/189333660>, via GBIF](https://invasives.ie/app/uploads/2022/09/Electric-ant-150x150.jpg)
![Lucas Rubio at iNaturalist CC BY 4.0 <https://www.inaturalist.org/photos/96429653>, via GBIF](https://invasives.ie/app/uploads/2022/09/Black-imported-fire-ant-150x150.jpg)
![Ali and Brice, iNaturalist CC BY NC 4.0 <https://www.inaturalist.org/photos/175940399>](https://invasives.ie/app/uploads/2022/09/Solenopsis-invicta-Red-imported-fire-ant-150x150.jpeg)
![Holger Braun at iNaturalist CC BY 4.0 <https://www.inaturalist.org/photos/168727563>](https://invasives.ie/app/uploads/2022/09/Limnoperna-fortunei-150x150.jpeg)
-Plants
![Alligator Weed](https://invasives.ie/app/uploads/2021/09/AlligatorWeed_John-D.-Boyd_Mississippi-State-University_Bugwood.org_-150x150.jpg)
![Asiatic Tearthumb](https://invasives.ie/app/uploads/2021/09/Asiatic-tearthumb_Qwert1234-at-ja.wikipedia_CC-BY-SA-3.0-150x150.jpg)
![](https://invasives.ie/app/uploads/2021/10/Cardiospermum-grandiflorum_-©-Bernd-Sauerwein-CC-BY-SA-3.0-via-Wikimedia-commons-150x150.png)
![Broadleaf Watermilfoil](https://invasives.ie/app/uploads/2021/09/Broadleaf-watermilfoil_Leslie-J.-Mehrhoff_University-of-Connecticut_Bugwood.org_Wikimedia-Commons-150x150.jpg)
![](https://invasives.ie/app/uploads/2021/10/Andropogon-virginicus_-©-Forest-and-Kim-Starr-CC-BY-2.0-via-Flickr.com_-150x150.png)
![](https://invasives.ie/app/uploads/2021/10/Lespedeza-cuneata_©-Suzanne-Cadwell-CC-BY-NC-2.0-via-Flickr.com_-150x150.png)
![](https://invasives.ie/app/uploads/2021/10/Triadica-sebifera_-©-Tatters-CC-BY-SA-2.0-via-Flickr.com_-150x150.png)
![Common Milkweed](https://invasives.ie/app/uploads/2021/09/Common-milkweed_Mdf_CC-BY-SA-3.0-150x150.jpg)
![Crimson Fountaingrass](https://invasives.ie/app/uploads/2021/09/Crimson-fountaingrass_Forest-Kim-Starr_CC-BY-3.0_Wikimedia-Commons-150x150.jpg)
![Eastern Baccharis](https://invasives.ie/app/uploads/2021/09/Eastern-baccharis_Consultaplantas_CC-BY-SA-4.0_Wikimedia-Commons-1-150x150.jpg)
![](https://invasives.ie/app/uploads/2021/10/Acacia-saligna_-©-H.-Zell-CC-BY-SA-3.0-via-Wikimedia-commons-150x150.png)
![Green Cabomba](https://invasives.ie/app/uploads/2021/09/Green-cabomba_Leslie-J.-Mehrhoff_University-of-Connecticut_Bugwood.org_CC-BY-3.0-2-150x150.jpg)
![](https://invasives.ie/app/uploads/2021/10/Ludwigia-peploides_Marcia-Stefani_Creative-Commons-attribution-2.0-150x150.jpg)
![](https://invasives.ie/app/uploads/2021/10/Humulus-scandens-_-©-Kenraiz-CC-BY-SA-4.0-via-Wikimedia-150x150.png)
![Japanese Stiltgrass](https://invasives.ie/app/uploads/2021/09/Japanese-stiltgrass_Leslie-J.-Mehrhoff_University-of-Connecticut_Bugwood.org_CC-BY-3.0_Wikimedia-Commons-1-150x150.jpg)
![Kudzu VIne](https://invasives.ie/app/uploads/2021/09/Kudzu_Forest-Kim-Starr_CC-BY-3.0_Wikimedia-Commons-150x150.jpg)
![](https://invasives.ie/app/uploads/2021/10/Prosopis-juliflora_-©-Forest-and-Kim-Starr-CC-BY-2.0-via-Flickr.com_-150x150.png)
![](https://invasives.ie/app/uploads/2021/10/Ehrharta-calycina_-©-Jerry-Kirkhart-CC-BY-2.0-via-Flickr.com_-150x150.png)
![Persian Hogweed](https://invasives.ie/app/uploads/2021/09/Persian-hogweed_KEBman-assumed_-Public-Domain-150x150.jpg)
![](https://invasives.ie/app/uploads/2021/10/Cortaderia-jubata_-©-Jon-Sullivan-CC-BY-NC-2.0-via-Flickr.com_-150x150.png)
![](https://invasives.ie/app/uploads/2021/10/Salvinia-molesta_-©-Tim-Waters-CC-BY-NC-ND-2.0-via-Flickr.com_-150x150.png)
![](https://invasives.ie/app/uploads/2021/10/Gymnocoronis-spilanthoides_-©-John-Tann-CC-BY-2.0-via-Flickr.com_-150x150.png)
![Sosnowski’s Hogweed](https://invasives.ie/app/uploads/2021/09/Sosnowskis-hogweed_Bff_Own-work_CC-BY-SA-3.0_Wikimedia-Commons-150x150.jpg)
![](https://invasives.ie/app/uploads/2021/10/Lygodium-japonicum_-©-Keisotyo-CC-BY-SA-4.0-via-Wikimedia-commons-150x150.png)
![Water Hyacinth](https://invasives.ie/app/uploads/2021/09/Water-hyacinth_H.-Zell_Own-work_CC-BY-SA-3.0_Commons.wikimedia.org_-150x150.jpg)
![Whitetop Weed](https://invasives.ie/app/uploads/2021/09/Whitetop-weed_Biswarup-Ganguly_Own-work_CC-BY-3.0_Wikimedia-Commons-150x150.jpg)
![Krzysztof Ziarnek, Kenraiz, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons](https://invasives.ie/app/uploads/2022/09/1200px-Hakea_sericea_kz03-150x150.jpg)
![Patrick Alexander CC BY 1.0_Flickr_aspidoscelis](https://invasives.ie/app/uploads/2022/09/Patrick-Alexander-CC-BY-1.0_Flickr_-_aspidoscelis-150x150.jpg)
![lcplinske at iNaturalist CC BY NC <https://www.inaturalist.org/photos/184524167> via, GBIF](https://invasives.ie/app/uploads/2022/09/water-lettuce-150x150.jpg)
![Frédéric ANDRE at iNaturalist CC BY NC <https://www.inaturalist.org/photos/178296859>, via GBIF](https://invasives.ie/app/uploads/2022/09/Rugulopteryx-okamurae-150x150.png)