There are many introduced species in New England. The earliest Europeans to arrive here began settling the continent here, bringing many living things to this new-to-them land. This process of transporting organisms to New England has continued every since the earliest settlers established their first home sites. Some of these species transplanted from other continents have become invasive species. Among these there are species that were deliberately brought here and those that were brought inadvertently, mainly as stowaways in other materials.
This page will offer a list of invasive species found in the region. I am not striving to create the definitive list here but one that might be useful as a resource. It will allow you to begin to learn about the invasive species problem here in New England. In some cases there are links that can help you to potentially identify a problem species and learn about how to fight it back.
Plants
Trees
Black Locust – Robinia pseudoacacia
Norway Maple – Acer platanoides
Shrubs
Buckthorn (1) – Rhamnus cathartica
Buckthor (2) – Rhamnus frangula
Multifloral rose – Rosa multiflora
Vines
Oriental Bittersweet – Celastrus orbiculatus
Black Swallowwort – Vincetoxicum nigrum
Herbaceous Species
Purple Loosestrife – Lythrum salicaria
Bull Thistle – Cirsium vulgare
Garlic Mustard – Alliaria petiolata
Japanese Knotweed – Polygonum cuspidatum
Aquatic
Water Chestnut – Trapa natans