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U.S. Invasive Weeds

Click on an accepted name below to view its Plant Profile with more information, and web links if available. Invasive plants that are synonyms are indented beneath the current PLANTS accepted name. You may view invasive lists by source by clicking on the source acronyms at the top of the report.

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 NRCS Invasive Species policy
 Invasive Species Executive Order 13112
List of Invasive PlantsScientific Name = A| B| C| D| E| F| G| H| I| J| K| L| M| N| O| P| Q| R| S| T| U| V| W| X| Y| Z| all
List of Invasive PlantsCommon Name = A| B| C| D| E| F| G| H| I| J| K| L| M| N| O| P| Q| R| S| T| U| V| W| X| Y| Z| all

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US Federal Noxious Weed List
STATE State noxious weed lists for 35 states
CalEPPC California Exotic Pest Plant Council, Exotic pest plant list
FLEPPC Florida Exotic Pest Plant Council, Invasive plant list
HEAR Hawaiian Ecosystems at Risk Project, Information index for selected alien plants in Hawaii
KY Weeds of Kentucky and adjacent states: A field guide
NE&GP Weeds of Nebraska and the Great Plains
N'EAST Weeds of the Northeast
SEEPPC Southeast Exotic Pest Plant Council, Invasive exotic pest plants in Tennessee
SWSS Southern Weed Science Society, Weeds of the United States and Canada
WI Wisconsin manual of control recommendations for ecologically invasive plants
WSWS Weeds of the West

Symbol Common Name Nativity
in US*
US STATE CalEPPC FLEPPC HEAR KY NE&GP N'EAST SEEPPC SWSS WI WSWS
Scientific Name

oatgrass
AVFA Avena fatua I STATE CalEPPC SWSS WSWS
oblong spurge
EUOB4 Euphorbia oblongata I STATE
octopus tree
SCAC2 Schefflera actinophylla I FLEPPC HEAR
oiltree
DEEL3 Derris elliptica XU HEAR
okra
ABES Abelmoschus esculentus I SWSS
ola'a
RURO Rubus rosifolius I HEAR N'EAST
old man's night cap
CASE13 Calystegia sepium NI STATE KY NE&GP; N'EAST SWSS WSWS
old man’s beard
CLVI6 Clematis vitalba I STATE
Old World climbing fern
LYMI Lygodium microphyllum I STATE FLEPPC
oldfield cinquefoil
POSI2 Potentilla simplex N N'EAST
oldfield clover
TRAR4 Trifolium arvense I N'EAST
oldfield fivefingers
POSI2 Potentilla simplex N N'EAST
oleaster
ELAN Elaeagnus angustifolia I STATE CalEPPC NE&GP; WI WSWS
oleaster
ELUM Elaeagnus umbellata I STATE SEEPPC WI
olive
OLEU Olea europaea I CalEPPC HEAR
onion vine
PACR15 Paederia cruddasiana I STATE FLEPPC
onionweed
ASFI2 Asphodelus fistulosus I US STATE
opium poppy
PASO2 Papaver somniferum I STATE
orach saltbush
ATSU2 Atriplex subspicata N NE&GP;
orange day lily
HEFU Hemerocallis fulva I WI
orange hawkweed
HIAU Hieracium aurantiacum I STATE WI WSWS
orange-jessamine
MUEX2 Murraya exotica I
MUPA4 Murraya paniculata FLEPPC
orchardgrass
DAGL Dactylis glomerata I NE&GP; N'EAST
orchid tree
BAVA Bauhinia variegata I FLEPPC
Oriental bittersweet
CEOR7 Celastrus orbiculatus XU STATE N'EAST SEEPPC WI
oriental mangrove
BRGY Bruguiera gymnorrhiza I HEAR
oriental trema
TROR Trema orientale I HEAR
ovalleaf knotweed
POAR11 Polygonum arenastrum I NE&GP;
ovaova
MIMI5 Mikania micrantha N US STATE
ovate goatgrass
AEGE Aegilops geniculata I WI
AEOV2 Aegilops ovata STATE
oxalis
OXCO Oxalis corniculata N WSWS
oxeye
HEHE5 Heliopsis helianthoides N NE&GP;
oxeye daisy
LEVU Leucanthemum vulgare I STATE CalEPPC
CHLE80 Chrysanthemum leucanthemum STATE SEEPPC WSWS
CHLEP Chrysanthemum leucanthemum var. pinnatifidum STATE KY N'EAST SWSS WI
Oxford ragwort
SESQ Senecio squalidus I STATE
oxygen weed
LAMA15 Lagarosiphon major XU US STATE
oyster plant
TRSP8 Tradescantia spathacea I FLEPPC
ozallaik
PEHA Peganum harmala I STATE WSWS

*N =Native, N? =probably native, NI=some populations native, some introduced, I =Introduced, I? =probably introduced, XU = Not in US or cultivated, ? =unknown.

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