Invasive Categories

Invasive Species Categorized by Life Form

This page is an alternative way to locate your invasive species of interest. The species listed on the Priority Species and Early Detection Species pages are reorganized here using plant categories known as life forms . The groupings generally increase by plant size going down the page, and include aquatic species, grasses, herbs and forbs, vines, shrubs and trees. Click on the common species name to take you to the specific page for that invasive species.


Aquatic Species

Brazilian waterweed (Egeria densa)
Eurasian Watermilfoil (Myriophyllum spicatum)
Great yellowcress (Rorippa amphibia)
Hydrilla (Hydrilla verticillata)
Parrot-feather (Myriophyllum aquaticum)
Water Chestnut (Trapa natans)


Japanese stiltgrass (Microstegium vimineum)
Common Reed (Phragmites australis)
Reed mannagrass (Glyceria maxima)


Bushy rock-cress
Narrow-leaf bittercress
(Cardamine impatiens)
Flowering rush (Butomus umbellatus)
Garlic Mustard (Alliaria petiolata)
Japanese Knotweed (Fallopia japonica)
Giant hogweed (Heracleum mantegazzianum)
Purple Loosestrife (Lythrum salicaria)
Spotted Knapweed (Centaurea stoebe)
Tansy ragwort / Stinking willie (Senecio jacobaea)


Black Swallowwort (Cynanchum louiseae) syn:
(Cynanchum nigrum)
Kudzu (Pureraria montana)
Mile-a-Minute vine (Persicaria perfoliata)
Oriental Bittersweet (Celastrus orbiculatus)


Autumn Olive (Elaeagnus umbellata)
Burning Bush (Euonymus alatus)
Bush Honeysuckle (Lonicera spp.)
Glossy Buckthorn (Frangula alnus)
Japanese Barberry (Berberis thunbergii)
Multiflora Rose (Rosa multiflora)


Amur cork tree (Phellodendron amurense)
Norway Maple (Acer platanoides)
Rusty willow
Large Gray Willow
(Salix cinerea) and (Salix atrocinerea)
Tree-of-Heaven (Ailanthus altissima)