INVASIVE SPECIES

Selected List of Most Common and Most Invasive Species Documented by Plants of Concern 2001-2006.

Invasive Species List

* N = Native, X= Exotic

Species	Common Name	U.S. Nativity*
Acer negundo	Box Elder	N
Acer platanoides	Norway Maple	X
Acer saccharum	Sugar Maple	N
Agropyron repens	Quack Grass	X
Ailanthus altissima	Tree of Heaven	X
Alliaria petiolata	Garlic Mustard	X
Allium mutabile	Meadow Garlic	N
Arctium minus	Common Burdock	X
Barbarea vulgaris	Yellow Rocket	X
Berberis thunbergii	Japanese Barberry	X
Bromus inermis	Smooth Brome	X
Carduus nutans	Musk or Nodding Thistle	X
Celastrus orbiculatus	Oriental Bittersweet	X
Centaurea maculosa	Spotted Knapweed	X
Chrysanthemum leucanthemum var. pinnatifidum	Oxeye Daisy	X
Cirsium arvense	Field or Canada Thistle	X
Cirsium vulgare	Bull Thistle	X
Convallaria majalis	European Lily of the Valley	X
Cornus racemosa	Gray Dogwood	N
Cornus stolonifera	Red Osier Dogwood	N
Coronilla varia	Crown Vetch	X
Daucus carota	Queen Anne's Lace	X
Dianthus armeria	Deptford Pink	X
Dipsacus laciniatus	Cutleaf Teasel	X
Duchesnea indica	Indian Strawberry	X
Elaeagnus umbellata	Autumn Olive	X
Elymus arenarius	Lyme Grass	X
Euonymus alatus	Burning Bush	X
Fraxinus pennsylvanica var. subintegerrima	Green Ash	N
Helianthus grosseserratus	Sawtooth Sunflower	N
Hemerocallis fulva	Orange Daylily	X
Hesperis matronalis	Dame's Rocket	X
Hieracium caespitosum	Field Hawkweed	X
Hypericum perforatum	Common St. Johnswort	X
Iris pseudacorus	Tall Yellow Iris	X
Lactuca serriola	Prickly Lettuce	X
Lonicera japonica	Japanese Honeysuckle	X
Lonicera maackii	Amur Honeysuckle	X
Lonicera tatarica	Tartarian Honeysuckle	X
Lonicera x muendeniensis	Bush Honeysuckle	X
Lonicera xylosteoides	Fly Honeysuckle	X
Lotus corniculatus	Bird's-foot Trefoil	X
Lysimachia nummularia	Moneywort	X
Lythrum salicaria	Purple Loosestrife	X
Maclura pomifera	Osage Orange	N
Melilotus alba	White Sweet Clover	X
Melilotus officinalis	Yellow Sweet Clover	X
Morus alba	White Mulberry	X
Myriophyllum spicatum	Eurasian Water Milfoil	X
Pastinaca sativa	Wild Parsnip	X
Phalaris arundinacea	Reed Canary Grass	X/N
Phragmites australis	Common Reed	N
Poa compressa	Canada Blue Grass	X
Poa pratensis	Kentucky Blue Grass	X/N
Populus deltoides	Eastern Cottonwood	N
Populus tremuloides	Quaking Aspen	N
Prunus serotina	Black Cherry	N
Ranunculus ficaria	Lesser Celandine	X
Rhamnus cathartica	Common Buckthorn	X
Rhamnus frangula	Glossy Buckthorn	X
Rhus sp.	Sumac	N
Robinia pseudoacacia	Black Locust	N
Rosa multiflora	Multiflora Rose	X
Rubus sp.	Raspberry/Blackberry	N
Rumex crispus	Curly Dock	X
Salix fragilis	Crack Willow	X
Salix interior	Sandbar Willow	N
Saponaria officinalis	Bouncing Bet	X
Solanum dulcamara	Bittersweet Nightshade	X
Solidago altissima	Tall Goldenrod	N
Solidago canadensis	Canada Goldenrod	N
Sporobolus vaginiflorus	Sheathed Rush Grass	N
Torilis japonica	Japanese Hedge Parsley	X
Toxicodendron radicans	Eastern Poison Ivy	N
Trifolium repens	White Clover	X
Typha angustifolia	Narrowleaf Cattail	X
Ulmus pumila	Siberian Elm	X
Verbascum thapsus	Common Mullein	X
Viburnum opulus	European Highbush Cranberry	X
Xanthium strumarium	Cocklebur	X/N