List of invasive plant species in Oregon

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Numerous plants have been introduced to Oregon, and many of them have become invasive species. The following are some of these species:

PictureScientific NameCommon Name
Ailanthus-altissima.jpg
Ailanthus altissima tree of heaven
Hvid klit.jpg
Ammophila arenaria marram grass
Brachypodium sylvaticum hivern.jpg
Brachypodium sylvaticum false-brome
Bromus tectorum -- Flora Batava -- Volume v13.jpg
Bromus tectorum drooping brome
BuddlejaDavidiiStrauch.jpg
Buddleja davidii summer lilac
20140209Carduus acanthoides.jpg
Carduus acanthoides spiny plumeless thistle
Musk thistle.jpg
Carduus nutans musk thistle
Centaurea cyanus 3.jpg
Centaurea cyanus cornflower
Mooie bloeiwijze van een Speerdistel (Cirsium vulgare) 03.jpg
Cirsium vulgare spear thistle
Clematis-vitalba-Waldrebe(Samenstand).jpg
Clematis vitalba old man's beard
Cortaderiajubata.jpg
Cortaderia jubata purple pampas grass
Crataegus monogyna - Common hawthorn.jpg
Crataegus monogyna common hawthorn
Nutgrass Cyperus rotundus02.jpg
Cyperus rotundus coco-grass
Cytisus scoparius by Danny S. - 001.JPG
Cytisus scoparius common broom
Cytisus striatus 2.jpg
Cytisus striatus hairy-fruited broom
Daphne laureola 8703.jpg
Daphne laureola spurge-laurel
Egeria densa iceland.JPG
Egeria densa large-flowered waterweed
Russian Olive.jpg
Elaeagnus angustifolia Russian olive
Euphorbia esula - kibe piimalill.jpg
Euphorbia esula green spurge
MyrtleSpurge.jpg
Euphorbia myrsinites myrtle spurge
GiantKnotweed053.jpg
Fallopia sachalinensis giant knotweed
Foeniculum July 2011-1a.jpg
Foeniculum vulgare Florence fennel
French Broom2.jpg
Genista monspessulana French broom
Geranium lucidum Sturm6.jpg
Geranium lucidum shining cranesbill
Herb-Robert 800.jpg
Geranium robertianum herb-Robert
Hedera helix1.JPG
Hedera helix common ivy
Hedera hibernica1.jpg
Hedera hibernica Atlantic ivy
Illustration Ilex aquifolium0.jpg
Ilex aquifolium common holly
Impatiens glandulifera 0004.JPG
Impatiens glandulifera impatiens
Iris pseudacorus iris des marais.jpg
Iris pseudacorus yellow flag
Starr 070313-5636 Salsola tragus.jpg
Kali tragus prickly Russian thistle
Polygonum polystachyum pres Sizun 2010 Detail.JPG
Koenigia polystachya  Himalayan knotweed
Linaria genistifolia ssp dalmatica 1.jpg
Linaria dalmatica Balkan toadflax
Linaria vulgaris - harilik kaokannus Valingu.jpg
Linaria vulgaris common toadflax
Logfia gallica narrowleaf cottonrose
Lythrum salicaria - harilik kukesaba.jpg
Lythrum salicaria purple loosestrife
Phalaris arundinacea 1.jpg
Phalaris arundinacea reed canary grass
Hieracium aurantiacum LC0106.jpg
Pilosella aurantiaca fox-and-clubs
Reynoutria japonica in Brastad 1.jpg
Reynoutria japonica Japanese knotweed
Himalayan Blackberry 5 leaf example.JPG
Rubus armeniacus Himalayan blackberry
Rubus laciniatus.jpg
Rubus laciniatus cutleaf evergreen blackberry
Salix fragilis 001.jpg
Salix × fragilis crack willow
Spartium junceum (habitus).jpg
Spartium Spanish broom
Tamarix ramosissima a2.jpg
Tamarix ramosissima saltcedar
Torilis arvensis 2005.07.21 14.27.51-p7210042.jpg
Torilis arvensis spreading hedgeparsley
Whin or Gorse on Fife Coastal Trail.jpg
Ulex  gorse

See also

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<i>Elaeagnus angustifolia</i> Species of flowering plant

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<i>Alliaria petiolata</i> Species of flowering plant in the cabbage family Brassicaceae

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<i>Solanum viarum</i> Species of shrub

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<i>Tanacetum parthenium</i> Species of flowering plant in the daisy family Asteraceae

Tanacetum parthenium, known as feverfew, is a flowering plant in the daisy family, Asteraceae. It may be grown as an ornament, and may be identified by its synonyms, Chrysanthemum parthenium and Pyrethrum parthenium. It is used in traditional medicine.

<i>Harrisia</i> (plant) Genus of cacti

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<i>Prosopis glandulosa</i> Species of tree

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<i>Lonicera maackii</i> Species of plant in the family Caprifoliaceae native to western Asia

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<i>Andropogon virginicus</i> Species of plant

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<i>Polypogon monspeliensis</i> Species of grass

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<span class="mw-page-title-main">Invasive species in the United States</span>

Invasive species are a crucial threat to many native habitats and species of the United States and a significant cost to agriculture, forestry, and recreation. An invasive species refers to an organism that is not native to a specific region, this poses significant economic and environmental threats to its new habitat. The term "invasive species" can also refer to feral species or introduced diseases. Some introduced species, such as the dandelion, do not cause significant economic or ecologic damage and are not widely considered as invasive. Economic damages associated with invasive species' effects and control costs are estimated at $120 billion per year.