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

OCEL Ochrosia elliptica I FLEPPC
kopsia
elliptic yellowwood
OEMA2 Oeceoclades maculata N FLEPPC
ground orchid
OEBI Oenothera biennis N KY NE&GP; SWSS
common evening primrose
hoary eveningprimrose
OELA Oenothera laciniata N N'EAST SWSS
cut-leaved evening primrose
OLEU Olea europaea I CalEPPC HEAR
olive
ONAL5 Ononis alopecuroides XU STATE CalEPPC
foxtail restharrow
ONOPO Onopordum STATE
thistle
ONAC Onopordum acanthium I STATE NE&GP; SWSS WSWS
Scotch cotton thistle
heraldic thistle
cotton thistle
Scotch thistle
ONIL Onopordum illyricum I STATE
thistle
ONTA Onopordum tauricum I STATE
taurus cotton thistle
OPAU10 Opuntia aurantiaca XU US STATE
jointed prickly pear
OPFR Opuntia fragilis N NE&GP;
brittle cactus
little pricklypear
fragile cactus
jumping cactus
brittle pricklypear
OPPO Opuntia polyacantha N NE&GP; WSWS
plains pricklypear
ORUM Ornithogalum umbellatum I STATE KY N'EAST SEEPPC
star-of-Bethlehem
Pyrenees star of Bethlehem
OROBA Orobanche US STATE
broomrape
ORCO4 Orobanche cooperi N STATE
Cooper's broomrape
ORMI Orobanche minor I STATE
hellroot
small broomrape
ORRA Orobanche ramosa I STATE
branched broomrape
ORLO3 Oryza longistaminata XU US STATE
longstamen rice
red rice
ORPU13 Oryza punctata XU US STATE
red rice
ORRU Oryza rufipogon I US STATE
wild red rice
brownbeard rice
red rice
ORSA Oryza sativa I STATE SWSS
rice
OTAL Ottelia alismoides I US STATE
duck lettuce
OXCO Oxalis corniculata N WSWS
creeping oxalis
creeping woods
oxalis
yellow wood sorrel
yellow oxalis
'ihi
OXST Oxalis stricta N KY NE&GP; N'EAST SWSS
yellow woodsorrel
common yellow oxalis
sheep sorrel
sourgrass
toad sorrel
OXPA3 Oxyspora paniculata I STATE HEAR
bristletips
OXLA3 Oxytropis lambertii N NE&GP;
Lambert crazyweed
Lambert loco
stemless loco
whitepoint locoweed
white woollyloco
purple locoweed
OXSE Oxytropis sericea N

*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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