Plant Species Reported to be Invasive in Natural Areas List

Source: Native Plant Society of Oregon, 2008

Source URL: http://emerald.npsoregon.org/index.htm

185 Species

Subject Name Scientific Name Family U.S. Nativity
eastern redcedar Juniperus virginiana L. Cupressaceae Native
kudzu Pueraria montana var. lobata (Willd.) Maesen & S. Almeida Fabaceae (Leguminosae) Exotic
princesstree Paulownia tomentosa (Thunb.) Sieb. & Zucc. ex Steud. Scrophulariaceae Exotic
Canada thistle Cirsium arvense (L.) Scop. Asteraceae Exotic
Norway maple Acer platanoides L. Aceraceae Exotic
tree-of-heaven Ailanthus altissima (P. Mill.) Swingle Simaroubaceae Exotic
garlic mustard Alliaria petiolata (Bieb.) Cavara & Grande Brassicaceae Exotic
purple crown-vetch Securigera varia (L.) Lassen Fabaceae (Leguminosae) Exotic
common teasel Dipsacus fullonum L. Dipsacaceae Exotic
Brazilian waterweed Egeria densa Planch. Hydrocharitaceae Exotic
common water hyacinth Eichhornia crassipes (Mart.) Solms Pontederiaceae Exotic
autumn olive Elaeagnus umbellata Thunb. Elaeagnaceae Exotic
ground ivy Glechoma hederacea L. Lamiaceae Exotic
hydrilla Hydrilla verticillata (L. f.) Royle Hydrocharitaceae Exotic
European privet Ligustrum vulgare L. Oleaceae Exotic
tall fescue Festuca arundinacea Schreb. Poaceae Exotic
Japanese honeysuckle Lonicera japonica Thunb. Caprifoliaceae Exotic
purple loosestrife Lythrum salicaria L. Lythraceae Exotic
white poplar Populus alba L. Salicaceae Exotic
lesser celandine, fig buttercup Ficaria verna Huds. Ranunculaceae Exotic
multiflora rose Rosa multiflora Thunb. Rosaceae Exotic
common mullein Verbascum thapsus L. Scrophulariaceae Exotic
common periwinkle Vinca minor L. Apocynaceae Exotic
Ohio buckeye Aesculus glabra Willd. Hippocastanaceae Native
black locust Robinia pseudoacacia L. Fabaceae (Leguminosae) Native
common horse chestnut Aesculus hippocastanum L. Hippocastanaceae Exotic
bull thistle Cirsium vulgare (Savi) Ten. Asteraceae Exotic
Japanese knotweed Fallopia japonica (Houttuyn) Ronse-Decraene Polygonaceae Exotic
yellow toadflax Linaria vulgaris P. Mill. Scrophulariaceae Exotic
dandelion Taraxacum officinale G.H. Weber ex Wiggers Asteraceae Native
field bindweed Convolvulus arvensis L. Convolvulaceae Exotic
gorse Ulex europaeus L. Fabaceae (Leguminosae) Exotic
Scotch broom Cytisus scoparius (L.) Link Fabaceae (Leguminosae) Exotic
common St. Johnswort Hypericum perforatum L. Clusiaceae Exotic
tansy ragwort Senecio jacobaea L. Asteraceae Exotic
sulfur cinquefoil Potentilla recta L. Rosaceae Exotic
dalmatian toadflax Linaria dalmatica ssp. dalmatica (L.) P. Mill. Scrophulariaceae Exotic
orchardgrass Dactylis glomerata L. Poaceae Exotic
big periwinkle Vinca major L. Apocynaceae Exotic
giant hogweed Heracleum mantegazzianum Sommier & Levier Apiaceae Exotic
creeping bentgrass Agrostis stolonifera L. Poaceae Exotic
indigobush Amorpha fruticosa L. Fabaceae (Leguminosae) Native
absinth wormwood Artemisia absinthium L. Asteraceae Exotic
tall oatgrass Arrhenatherum elatius (L.) Beauv. ex J.& K. Presl Poaceae Exotic
common burdock Arctium minus Bernh. Asteraceae Exotic
wild oat Avena fatua L. Poaceae Exotic
English daisy Bellis perennis L. Asteraceae Exotic
soft brome Bromus hordeaceus L. Poaceae Exotic
rye brome Bromus secalinus L. Poaceae Exotic
poverty brome Bromus sterilis L. Poaceae Exotic
cheatgrass Bromus tectorum L. Poaceae Exotic
Carolina fanwort Cabomba caroliniana A. Gray Cabombaceae Native
purple pampasgrass Cortaderia jubata (Lem.) Stapf Poaceae Exotic
Uruguayan pampas grass Cortaderia selloana (Schult. & Schult. f.) Asch. & Graebn. Poaceae Exotic
common hawthorn Crataegus monogyna Jacq. Rosaceae Exotic
Queen Anne's lace, wild carrot Daucus carota L. Apiaceae Exotic
spurgelaurel Daphne laureola L. Thymelaeaceae Exotic
jimsonweed Datura stramonium L. Solanaceae Exotic
foxglove Digitalis purpurea L. Scrophulariaceae Exotic
barnyardgrass Echinochloa crus-galli (L.) Beauv Poaceae Exotic
fennel Foeniculum vulgare P. Mill. Apiaceae Exotic
cutleaf geranium Geranium dissectum L. Geraniaceae Exotic
French broom Genista monspessulana (L.) L. Johnson Fabaceae (Leguminosae) Exotic
common velvetgrass Holcus lanatus L. Poaceae Exotic
hairy cat's ear Hypochaeris radicata L. Asteraceae Exotic
English holly Ilex aquifolium L. Aquifoliaceae Exotic
yellow iris Iris pseudacorus L. Iridaceae Exotic
nipplewort Lapsana communis L. Asteraceae Exotic
everlasting peavine Lathyrus latifolius L. Fabaceae (Leguminosae) Exotic
oxeye daisy Leucanthemum vulgare Lam. Asteraceae Exotic
birdsfoot trefoil Lotus corniculatus L. Fabaceae (Leguminosae) Exotic
creeping waterprimrose Ludwigia peploides (Kunth) Raven Onagraceae Native
creeping yellow loosestrife, creeping Jenney Lysimachia nummularia L. Primulaceae Exotic
pennyroyal Mentha pulegium L. Lamiaceae Exotic
true forget-me-not Myosotis scorpioides L. Boraginaceae Exotic
bulbous canarygrass Phalaris aquatica L. Poaceae Exotic
reed canarygrass Phalaris arundinacea L. Poaceae Exotic
timothy Phleum pratense L. Poaceae Exotic
cultivated knotweed Persicaria wallichii Greuter & Burdet Polygonaceae Exotic
giant knotweed Fallopia sachalinensis (F. Schmidt) Ronse-Decraene Polygonaceae Exotic
creeping buttercup Ranunculus repens L. Ranunculaceae Exotic
curly dock Rumex crispus L. Polygonaceae Exotic
Himalayan blackberry Rubus armeniacus Focke Rosaceae Exotic
cutleaf blackberry Rubus laciniatus Willd. Rosaceae Exotic
broadleaf dock Rumex obtusifolius L. Polygonaceae Exotic
bouncingbet Saponaria officinalis L. Caryophyllaceae Exotic
common groundsel Senecio vulgaris L. Asteraceae Exotic
bittersweet nightshade Solanum dulcamara L. Solanaceae Exotic
Spanish broom Spartium junceum L. Fabaceae (Leguminosae) Exotic
medusahead Taeniatherum caput-medusae (L.) Nevski Poaceae Exotic
white clover Trifolium repens L. Fabaceae (Leguminosae) Exotic
moth mullein Verbascum blattaria L. Scrophulariaceae Exotic
ventenata Ventenata dubia (Leers) Coss. & Durieu Poaceae Exotic
cranberry vibrunum, European highbush cranberry Viburnum opulus ssp. opulus Linnaeus Caprifoliaceae Exotic
common vetch Vicia sativa Linnaeus Fabaceae (Leguminosae) Exotic
sparrow vetch Vicia tetrasperma (L.) Schreb. Fabaceae (Leguminosae) Exotic
hairy vetch Vicia villosa Roth Fabaceae (Leguminosae) Exotic
knapweeds Centaurea spp. L. Asteraceae
European mountain-ash Sorbus aucuparia L. Rosaceae Exotic
carpet bugle Ajuga reptans L. Lamiaceae Exotic
tall vervain Verbena bonariensis L. Verbenaceae Exotic
colonial bentgrass Agrostis capillaris L. Poaceae Exotic
fountaingrass Pennisetum spp. L.C. Rich. ex Pers Poaceae
ryegrass Lolium spp. L. Poaceae
Sycamore maple Acer pseudoplatanus L. Aceraceae Exotic
Callery pear (Bradford pear) Pyrus calleryana Dcne. Rosaceae Exotic
goutweed Aegopodium podagraria L. Apiaceae Exotic
sweet vernalgrass Anthoxanthum odoratum L. Poaceae Exotic
European birch Betula pendula Roth Betulaceae Exotic
European waterstarwort Callitriche stagnalis Scop. Callitrichaceae Exotic
European spindletree Euonymus europaeus L. Celastraceae Exotic
longstalk cranesbill Geranium columbinum L. Geraniaceae Exotic
Japanese rose Kerria japonica (L.) DC. Rosaceae Exotic
sweet cherry Prunus avium (L.) L. Rosaceae Exotic
sweetbriar rose Rosa eglanteria L. Rosaceae Exotic
small hop clover Trifolium dubium Sibthorp Fabaceae (Leguminosae) Exotic
red clover Trifolium pratense L. Fabaceae (Leguminosae) Exotic
butterflybush Buddleja davidii Franch. Buddlejaceae Exotic
common filbert Corylus avellana L. Betulaceae Exotic
common pear Pyrus communis L. Rosaceae Exotic
plum Prunus domestica L. Rosaceae Exotic
herb bennet Geum urbanum L. Rosaceae Exotic
sweetscented bedstraw Galium odoratum (L.) Scop. Rubiaceae Exotic
elecampane Inula helenium L. Asteraceae Exotic
herb-robert Geranium robertianum L. Geraniaceae Exotic
cherry plum Prunus cerasifera Ehrh. Rosaceae Exotic
cotoneaster Cotoneaster spp. Medik. Rosaceae
silver hairgrass Aira caryophyllea L. Poaceae Exotic
Himalayan balsam Impatiens glandulifera Royle Balsaminaceae Exotic
yellow floating heart Nymphoides peltata (S.G. Gmel.) Kuntze Menyanthaceae Exotic
tiny vetch Vicia hirsuta (L.) S.F. Gray Fabaceae (Leguminosae) Native
common comfrey Symphytum officinale L. Boraginaceae Exotic
bird vetch Vicia cracca L. Fabaceae (Leguminosae) Exotic
Italian bugloss Anchusa azurea P. Mill. Boraginaceae Exotic
Italian arum Arum italicum P. Mill. Araceae Exotic
perennial false-brome Brachypodium sylvaticum (Huds.) Beauv. Poaceae Exotic
European centaury Centaurium erythraea Rafn Gentianaceae Exotic
red valerian Centranthus ruber (L.) DC. Valerianaceae Exotic
evergreen clematis Clematis vitalba L. Ranunculaceae Exotic
red fescue Festuca rubra L. Poaceae Native
shining geranium Geranium lucidum L. Geraniaceae Exotic
German velvetgrass Holcus mollis L. Poaceae Exotic
yellow archangel Lamium galeobdolon (L.) Crantz Lamiaceae Exotic
European blackberry Rubus vestitus Weihe & Nees Rosaceae Exotic
annual honesty Lunaria annua L. Brassicaceae Exotic
Japanese flowering crabapple Malus floribunda Sieb. Ex Van Houtte Rosaceae Exotic
blackthorn Prunus spinosa L. Rosaceae Exotic
Portugal laurel Prunus lusitanica L. Rosaceae Exotic
cherry laurel Prunus laurocerasus L. Rosaceae Exotic
lemon balm Melissa officinalis L. Lamiaceae Exotic
watercress Nasturtium officinale R. Brown Brassicaceae Exotic
Kenilworth ivy Cymbalaria muralis P.G. Gaertn., B. Mey. & Scherb. Scrophulariaceae Exotic
plumeless thistle Carduus spp. L. Asteraceae Exotic
firethorn Pyracantha spp. L. Rosaceae
redhot poker Kniphofia uvaria (L.) Oken Liliaceae Exotic
Washington hawthorn Crataegus phaenopyrum (L. f.) Medik. Rosaceae Native
lady's-mantle Alchemilla mollis (Buser) Rothm. Rosaceae Exotic
Aaron's beard Hypericum calycinum L. Clusiaceae
water primrose Ludwigia grandiflora ssp. hexapetala (Hook. & Arn.) Nesom & Kartesz Onagraceae Exotic
meadow foxtail Alopecurus pratensis Linnaeus Poaceae Exotic
hedgehog dogtailgrass Cynosurus echinatus L. Poaceae Exotic
Atlantic Ivy Hedera hibernica (Kirchn.) Bean. Araliaceae Exotic
ripgut brome Bromus diandrus ssp. rigidus (Roth) Sales Poaceae Exotic
sowthistle Sonchus spp. L. Asteraceae Exotic
bur chervil Anthriscus caucalis M. Bieb. Apiaceae Exotic
Algerian ivy Hedera canariensis Willd. Araliaceae Exotic
laurustinus Viburnum tinus L. Caprifoliaceae Exotic
Kentucky bluegrass Poa pratensis ssp. pratensis L. Poaceae
rose campion Lychnis coronaria (L.) Desr. Caryophyllaceae Exotic
English violet Viola odorata L. Violaceae Exotic
bear's breech Acanthus mollis L. Acanthaceae Exotic
big trefoil Lotus pedunculatus Cav. Fabaceae (Leguminosae) Exotic
changing forget-me-not Myosotis discolor Pers. Boraginaceae Exotic
dovefoot geranium Geranium molle L. Geraniaceae Exotic
evergreen bugloss Pentaglottis sempervirens (L.) Tausch ex L.H. Bailey Boraginaceae Exotic
flat peavine Lathyrus sylvestris L. Fabaceae (Leguminosae) Exotic
hanging sedge Carex pendula Huds. Cyperaceae Exotic
lettuce Lactuca spp. N/A Asteraceae
little quakinggrass Briza minor L. Poaceae Exotic
pale flax Linum bienne Mill. Linaceae Exotic
subterranean clover Trifolium subterraneum L. Fabaceae (Leguminosae) Exotic
watermilfoil Myriophyllum spp. N/A Haloragaceae
wild basil Clinopodium vulgare L. Lamiaceae Native
lesser hawkbit Leontodon taraxacoides ssp. taraxacoides L. Asteraceae Exotic
Bohemian knotweed Polygonum x bohemicum (J. Chrtek & Chrtkov├č) Zika & Jacobson [cuspidatum x sachalinense] Polygonaceae