| Common Name |
Botanica Name |
Introduction |
Invasive Nature |
| Alleppo Grass (See Millet grass) |
Sorghum halepense |
~ |
~ |
| Asian Bittersweet |
Celastrus orbiculatus |
Introduced as an ornamental |
Shades out native plants |
| Autumn Olive |
Elaeagnus Umbellata Thunb. |
Ornamental, wildlife habitat and erosion control |
It will crowd out native plants and take over the area. |
| Ball Cress (See Peppergrass) |
~ |
~ |
~ |
| Beach vitex (See Monk's Pepper) |
~ |
~ |
~ |
| Brazilian Waterweed |
Egeria Densa Planch |
Intentional Aquadic Introduction |
Crowds out native plants |
| Broadleaf Toadflax |
Linaria Dalmatica |
Ornamental |
Need more reseach |
| Bronco grass (See Cheatgrass) |
~ |
~ |
~ |
| Broom (Scotch,Common, European, Irish, English) |
Cytisus Scoparius |
Ornamental |
Crowds out native plants, detrimental to wildlife |
| Buckthorn (Glossy & Common) |
Rhamnus frangula, R. cathartica |
Accidental Introduction |
Glossy-wetlands/Common upland both crowd out native plants |
| Butterfly Bush |
Buddleia spp |
Ornamental |
Must manage carefully. |
| California Thistle (See Field Thistle) |
~ |
~ |
~ |
| Canadian Thistle (See Field Thistle) |
~ |
~ |
~ |
| Cartwheel Flower |
Heracleum Mantegazzianum |
Ornamental |
Crowds out native plants, toxic sap which can cause skin irritation and blindness! |
| Cat Tail (Narrow leafed and Hybrid) |
Typha angustifolia -NN, T. Xglauca -N |
Accidental Introduction (narrow leafed) by water-ways. |
Both will out compete other native species. |
| Chasteberry (See Monk's Pepper) |
~ |
~ |
~ |
| Cheatgrass |
Bromus Tectorum L. |
Accidental Introduction |
Wildfire hazard and crowds out native plants. |
| China-Sumac |
Ailanthus Altissima |
Ornamental |
Crowds out native plants & per Invasive Species.gov will also do damage to cement. |
| Chinese Tallow (See Popcorn Tree) |
~ |
~ |
~ |
| Chinese Tearthumb |
Persicaria Perfoliata L. |
Accidental Introduction |
Crowds out native plants. |
| Clover (Yellow Sweet & White) |
M officinalis, Melilotus alba |
Forage and honey production |
Seeds can be germinated after 30 yrs.and take over prairies & savannas. |
| Common Teasel (See Wild Teasel) |
~ |
~ |
~ |
| Corn Thistle (See Field Thistle) |
~ |
~ |
~ |
| Cotton Thistle (See Scotch Thistle) |
~ |
~ |
~ |
|
Creeping Knapweed (See Russian Cornflower) |
~ |
~ |
~ |
| Creeping Thistle (See Field Thistle) |
~ |
~ |
~ |
| Curly Pondweed |
Potamogeton crispus |
Intentional Introduction |
Need more info |
| Dalmation Toadflax (See Broadleaf) |
~ |
~ |
~ |
| Diffuse Knapweed |
~ |
~ |
~ |
| Downy Brome (See Cheatgrass) |
~ |
~ |
~ |
| Drooping Brome (See Cheatgrass) |
~ |
~ |
~ |
| Early Chess (See Cheatgrass) |
~ |
~ |
~ |
| Elaeagnus (See Autum Olive) |
~ |
~ |
~ |
| English Ivy |
Hedera Helix |
Ornamental ground cover |
Must maintain control |
| Eurasian Water- Milfoil |
Myriophyllum spicatum |
Introduced by aquarium industry. |
Prevents water recreation and shades out native plants. |
| Field Thistle |
Cirsium Arvense |
Accidental introduction. |
Crowds out native plants and reduces crop yeilds. |
| Fleeceflower |
Polygonum Cuspidatum |
Erosion control and ornamental |
Crowds out native plants. |
| Fuller's Teasel (See Wild Teasel) |
~ |
~ |
~ |
| Garlic Mustard (See Garlicwort) |
~ |
~ |
~ |
| Garlicwort |
Alliaria Petiolata |
Food and medicinal |
Crowds out native plants |
| Giant Hogweed (See Cartwheel Flower) |
~ |
~ |
~ |
| Goatweed (See St. John's Wort) |
~ |
~ |
~ |
| Gypsy Flower |
Cynoglossum Officinale L. |
Accidental Introduction |
Toxic to livestock |
| Hairy Whitetop (See Peppergrass) |
~ |
~ |
~ |
| Hardheads (See Russian Cornflower) |
~ |
~ |
~ |
| Hedge Garlic (See Garlicwort) |
~ |
~ |
~ |
| Heraldic Thistle (See Scotch Thistle) |
~ |
~ |
~ |
| Hoary Cress (See Peppergrass) |
~ |
~ |
~ |
|
Honeysuckle (Amur, Morrow & Tatarian) |
Lonicera maackii, L. morrowii, L. tatarica |
Ornamental |
Shades out native plants |
| Houndstongue (See Gypsy Flower) |
~ |
~ |
~ |
| Jack-by(in)-the-hedge(bush) (See Garlicwort) |
~ |
~ |
~ |
| Japanese Honeysuckle |
Lonicera Japonica Thunb. |
Ornamental |
Crowds out native plants |
| Japanese Knotweed (See Fleeceflower) |
~ |
~ |
~ |
| Japanese Silverberry (See Autumn Olive) |
~ |
~ |
~ |
| Japenese Rose (See Rambler Rose) |
~ |
~ |
~ |
| Johnson Grass (See Milletgrass) |
~ |
~ |
~ |
| June Grass (See Cheatgrass) |
~ |
~ |
~ |
| Klamath Weed (See St. John's Wort) |
~ |
~ |
~ |
| Leafy Spurge |
Euphorbia Esula |
Accidental Introduction |
Crowds out native plants |
| Lesser Naiad |
Najas minor |
Accidental Introduction |
Shades out native plants |
| Lily Turf |
Liriope muscari |
Ornamental |
Must manage carefully. |
| Medusahead (grass, rye, head) |
Taeniatherum Caputmedusae L. |
Accidental Introduction |
Crowds out native plants (forage) Need more info |
| Mexican Bamboo (See Fleeceflower) |
~ |
~ |
~ |
| Military Chess (See Cheatgrass) |
~ |
~ |
~ |
| Milletgrass (Alleppo) |
Sorghum Helepense |
Forage |
Crowds out native plants |
| Monk's pepper |
Vitex rotundifolia |
Erosion control |
Crowds out native plants and destroys sea turtle nesting habitat |
| Mountain Bluet (See Russian Cornflower) |
~ |
~ |
~ |
| Multiflora Rose (See Rambler Rose) |
~ |
~ |
~ |
| Musk Thistle |
Carduus Nutans L. |
Accidental Introduction |
Crowds out native plants & forage |
| Mustard Root (See Garlicwort) |
~ |
~ |
~ |
| Oleaster |
Elaeagnus Angustifolia |
Ornamental |
Crowds out native plants |
| Peppergrass |
Lepidium Draba or L. Appelianum Al Shehbaz |
Accidental Introduction |
Crowds out native plants |
| Perennial Thistle (See Field Thistle) |
~ |
~ |
~ |
| Popcorn Tree |
Triadica Sebifera |
Ornamental |
Crowds out native plants |
| Purple (Red) Star Thistle |
Centaurea Calcitrapa L. |
Accidental Introduction |
Crowds out native plants |
| Purple Loosestrife |
Lythrum salicaria L |
Unkown origin ? native? |
Alters biogeochemical and hydrological processes in wetlands |
| Quackgrass |
Elymus Repens |
Accidental Introduction |
Crowds out native plants |
| Rambler Rose |
Rosa Multiflora Thunb. |
Ornamental, erosion control |
Crowds out native plants |
| Reed (Canary) |
Phalaris arundinacea |
Unknown origin(native and foreign strains) Foreign strains used for forage, erosion control & vigor in wetlands. |
Shades out native plants and produces little benefit for wildlife habitat. |
| Reed (Common Reed) |
Phragmites australis |
Controversy over if native or not |
Crowds out other plants however some habitat benefits as well as used as water purification |
| Russian Knapweed (See Russian Cornflower) |
~ |
~ |
~ |
| Russian Olive (See Oleaster) |
~ |
~ |
~ |
| Saltcedar (See Tamarisk) |
~ |
~ |
~ |
| Sauce-alone (See Garlicwort) |
~ |
~ |
~ |
| Scotch Thistle |
Onopordum Acanthium L. |
Ornamental |
Crowds out native plants & crops. |
| Spotted Knapweed |
Centaurea Biebersteinii |
Accidental Introduction |
Crowds out native plants and forage |
| Spreading Knapweed (See Tumble Knapweed) |
~ |
~ |
~ |
| St. John's Wort |
Hypericum Perforatum |
Ornamental, medicinal |
Crowds out native plants, toxic to livestock |
| Tamarisk |
Tamarix L. |
Ornamental |
Per Invasivespeciesinfo.org it absorbs large amounts of water and leaves large deposits of salt |
| Teasel (Cut-leaf & common) |
D. laciniatus, Dipsacus fullonum (sylvestris) |
Ornamental |
Germination rates: 86% and out-competes native plants |
| Tipton Weed (See St. John's Wort) |
~ |
~ |
~ |
| Tree-of-Heaven (See China-sumac) |
~ |
~ |
~ |
| Tropical Soda Apple |
Solanum Viarum Dunal |
Accidental Introduction |
Crowds out native plants and forage |
| Tumble Knapweed |
Centaurea Diffusa Lam. |
Accidental introduction. |
Crowds out native plants |
| Turestand Thistle (See Russian Cornflower) |
~ |
~ |
~ |
| Varnish Tree (See China-Sumac) |
~ |
~ |
~ |
| Venuscup Teasel (See Wild Teasel) |
~ |
~ |
~ |
| Water Chestnut |
Trapa natans L |
Accidental Introduction-aquatic |
Water recreational deterent,supresses other native plants by it's shade. |
| White Knapweed |
Need info |
~ |
~ |
| White Top (See Peppergrass) |
~ |
~ |
~ |
| White Weed (See Peppergrass) |
~ |
~ |
~ |
| Wild Teasel |
Dipsacus Fullonum L. |
Accidental introduction. |
Crowds out native plants |
| Winter Creeper |
Euonymus fortunei |
Ornamental ground cover |
Must manage carefully. |
| Wooly Thistle (See Scotch Thistle) |
~ |
~ |
~ |