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Introduced, Invasive, and Noxious Plants

About Weeds of the U.S.
NRCS Invasive Species Policy
Invasive Species Executive Order 13112

U.S. Weeds with Scientific Name =O*
29 records returned

Click on an accepted name below to view its PLANTS 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.

U.S. USDA, Animal and Plant Health Inspection Service (APHIS), Plant Protection and Quarantine (PPQ). Federal noxious weed list (1 February 2012). USDA, APHIS, PPQ, Washington, DC.
USDA, Animal and Plant Health Inspection Service (APHIS), Plant Protection and Quarantine (PPQ). State Plant Regulatory Officials letters. National Plant Board
STATE Assorted authors. State noxious weed lists for 46 states. State agriculture or natural resource departments.
Cal-IPC California Invasive Plant Council. California Invasive Plant Inventory. Cal-IPC Publication 2006-02 (1 February 2007). California Invasive Plant Council, Berkeley, California.
FLEPPC Florida Exotic Pest Plant Council. Invasive plant list. Florida Exotic Pest Plant Council, Florida.
HEAR USDI, Geological Survey. Information index for selected alien plants in Hawaii (20 October 2003). Hawaiian Ecosystems at Risk Project, Biological Resources Division, Haleakala Field Station, Makawao, Hawaii.
KY Haragan, P.D. Weeds of Kentucky and adjacent states: a field guide. The University Press of Kentucky, Lexington, Kentucky.
N'EAST Uva, R.H., J.C. Neal,and J.M. DiTomaso. Weeds of the Northeast. Cornell University Press, Ithaca, New York.
NE&GP Stubbendieck, J., G.Y. Friisoe,and M.R. Bolick. Weeds of Nebraska and the Great Plains. Nebraska Department of Agriculture, Bureau of Plant Industry, Lincoln, Nebraska.
SEEPPC Southeast Exotic Pest Plant Council. Invasive exotic pest plants in Tennessee (19 October 1999). Research Committee of the Tennessee Exotic Pest Plant Council, Tennessee.
SWSS Southern Weed Science Society. Weeds of the United States and Canada. CD-ROM. Southern Weed Science Society, Champaign, Illinois.
WSWS Whitson, T.D. (ed.) et al. Weeds of the West. Western Society of Weed Science in cooperation with Cooperative Extension Services, University of Wyoming, Laramie, Wyoming.

 

Symbol Scientific Name
Common Name
Source Native Status*
ONAC2 Onopordum acaulon US
ONOPO
 
Onopordum
thistle
STATE
 
OPAU10
 
Opuntia aurantiaca
jointed prickly pear
US, STATE
 
OROBA
 
Orobanche
broomrape
US, STATE
 
ORLO3
 
 
Oryza longistaminata
longstamen rice
red rice
US, STATE
 
 
ORPU13
 
Oryza punctata
red rice
US, STATE
 
OXPA3
 
Oxyspora paniculata
bristletips
STATE, HEAR
 
HI (I)
OCEL
 
 
Ochrosia elliptica
elliptic yellowwood
kopsia
FLEPPC
 
 
L48 (I)
ONAL5
 
Ononis alopecuroides
foxtail restharrow
STATE, Cal-IPC
 
L48 (I)
ONIL
 
Onopordum illyricum
thistle
US, STATE
 
L48 (I)
ONTA
 
Onopordum tauricum
taurus cotton thistle
STATE
 
L48 (I)
ORMI
 
 
Orobanche minor
hellroot
small broomrape
STATE
 
 
L48 (I)
ORRA
 
Orobanche ramosa
branched broomrape
STATE
 
L48 (I)
ORRU
 
 
 
Oryza rufipogon
brownbeard rice
red rice
wild red rice
US, STATE
 
 
 
L48 (I)
OTAL
 
Ottelia alismoides
duck lettuce
US, STATE
 
L48 (I)
ORUM
 
 
Ornithogalum umbellatum
Pyrenees star of Bethlehem
star-of-Bethlehem
STATE, KY, N'EAST, SEEPPC
 
 
L48 (I), CAN (I)
ONAC
 
 
 
 
Onopordum acanthium
Scotch cotton thistle
Scotch thistle
cotton thistle
heraldic thistle
STATE, NE&GP, SWSS, WSWS
 
 
 
 
L48 (I), CAN (W)
OLEU
 
Olea europaea
olive
Cal-IPC, HEAR
 
L48 (I), HI (I)
OEMA2
 
Oeceoclades maculata
ground orchid
FLEPPC
 
L48 (I), PR (I), VI (I)
ORSA
 
Oryza sativa
rice
STATE, SWSS
 
L48 (I), PR (I), VI (I)
ORCO4
 
Orobanche cooperi
Cooper's broomrape
STATE
 
L48 (N)
OXSE
 
 
 
Oxytropis sericea
locoweed
silky crazyweed
white locoweed
WSWS
 
 
 
L48 (N)
OXST
 
 
 
 
 
Oxalis stricta
common yellow oxalis
sheep sorrel
sourgrass
toad sorrel
yellow woodsorrel
KY, N'EAST, NE&GP, SWSS
 
 
 
 
 
L48 (N), CAN (I)
OEBI
 
 
Oenothera biennis
common evening primrose
hoary eveningprimrose
KY, NE&GP, SWSS
 
 
L48 (N), CAN (N)
OPFR
 
 
 
 
 
Opuntia fragilis
brittle cactus
brittle pricklypear
fragile cactus
jumping cactus
little pricklypear
NE&GP
 
 
 
 
 
L48 (N), CAN (N)
OPPO
 
Opuntia polyacantha
plains pricklypear
NE&GP, WSWS
 
L48 (N), CAN (N)
OXLA3
 
 
 
 
 
 
Oxytropis lambertii
Lambert crazyweed
Lambert loco
purple locoweed
stemless loco
white woollyloco
whitepoint locoweed
NE&GP
 
 
 
 
 
 
L48 (N), CAN (N)
OELA
 
Oenothera laciniata
cut-leaved evening primrose
N'EAST, SWSS
 
L48 (N), HI (I), CAN (I)
OXCO
 
 
 
 
 
 
Oxalis corniculata
'ihi
creeping oxalis
creeping woods
oxalis
yellow oxalis
yellow wood sorrel
WSWS
 
 
 
 
 
 
L48 (N), HI (I), PR (N), VI (N), CAN (I)
 
   
*CodeNative Status
I Introduced
N Native
W Waif

*CodeNative Status Jurisdiction
L48 Lower 48 States
HI Hawaii
PR Puerto Rico
VI Virgin Islands
CAN Canada

 

Time Generated: 09/19/2014 05:53 AM MDT