Sudbury-Assabet-Concord River Watershed

Early Detection Invasives

The early detection invasive species are those that are new to the SuAsCo watershed or are expected to soon arrive. These species must be found a soon as possible while there is still time and resources to erradicate them wherever they appear. The list contains the common name(s) and genus-species names. Also noted are species that are especially problematic and must be found and eliminated (Watch).


Common Name
Genus-Species Name
Watch Status

Amur Cork Tree
Phellodendron amurense
Watch
Brazilian Water Weed Flower
Egeria densa
Broad-leaved Pepperweed
Lepidium latifolium L.
Callery Pear
Pyrus calleryana Dcne.
Creeping Buttercup
Ranunculus repens L.
European Alder Leaf
Alnus glutinosa (L.) Gaertn.
Rusty Willow
Salix atrocinerea (L.) Gaertn.) and Gray Willow (S.cinerea (L.) Gaertn.
Watch
Fig Buttercup
Ficaria verna Huds.
Giant Hogweed
Heracleum mantegazzianum
Hydrilla photo
Hydrilla verticillata
Japanese Stiltgrass
Microstegium vimineum
Watch
Kudzu
Pueraria montana ssp. lobata
Watch
Mile-a-minute Vine
Persicaria perfoliata
Watch
Narrow-leaf Bittercress
Cardamine impatiens
Watch
Wall Lettuce Closeup
Mycelis muralis (L.) Dumort.
Wineberry
Rubus phoenicolasius Maxim.