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About the Invasive Plant Database

This database contains the Dirty Dozen and the Watch List which were created by the Oklahoma Invasive Plant Council.  The Dirty Dozen is a list of the 13 worst invasive plants in Oklahoma.  The Watch List  is made up of invasive plants that are known to be one or more of the following:   


  1. Present in Oklahoma and/or a bordering state.

  2. Negatively affecting the economy, environment, or human health in Oklahoma and/or a bordering state.

  3. Listed as a noxious weed or an aquatic nuisance plant species in Oklahoma and/or a bordering state.


This database is to be used to facilitate education and management of invasive plant species in Oklahoma. The Invasive Plant Database is not a static list, but is subject to change as new data become available.

Please cite the Oklahoma Invasive Plant Database as:

Oklahoma Invasive Plant Council. 2023. Oklahoma Invasive Plant Database (; date accessed). Norman, OK.

Habitat Definitions


  • Tilled and low/no-tilled areas used for the production of grain crops, including row crops and perennial hay crops.

  • Pastureland primarily consisting of introduced forages or enhanced native forage species used for grazing.

  • Pastureland that receives periodic treatments such as tillage, fertilization, and/or weed control.   



  • Areas where the native vegetation is predominately grasses and forbs with interspersed shrubs and trees.

  • Rangeland management that occurs through ecological processes such as grazing, fire, and is affected by weather events, especially long-term, periodic drought. 


Disturbed/waste areas:    

  • Roadsides, abandoned lands (such as those once used for crops or grazing or urban areas no longer maintained), power-line cuts, and pipeline right of ways.  



  • Lawns, flowerbeds, and gardens found around homes and businesses in developed areas.  



  • Areas in and around seeps, wetlands, streams, rivers, ponds, and lakes.  


FINAL_Watch list regional map.svg.tif


CABI, 2021. Invasive Species Compendium. CAB International, Wallingford, UK. 


Center for Invasive Species and Ecosystem Health. 2020. Invasive and Exotic Species of North America. University of Georgia-Center for Invasive Species and Ecosystem Health, Tifton, GA.   


Colorado Department of Agriculture. 2020. Noxious Weed Species ID. Colorado Department of Agriculture, Broomfield, CO. 

Consumer Protection Services Division. 2016. Summary of Plant Quarantine Regulations, Oklahoma Noxious Weeds. Oklahoma Department of Agriculture, Food, and Forestry, Oklahoma City, OK. 

EDDMapS. 2020. Early Detection & Distribution Mapping System. The University of Georgia- Center for Invasive Species and Ecosystem Health, Tifton, GA. 


Fire Effects Information System. 2021. US Department of Agriculture, Forest Service, Rocky Mountain Research Station, Missoula Fire Sciences Laboratory, Missoula, MT. 


Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico [Online]. 22+ vols. New York and Oxford. Vol. 1, 1993; vol. 2, 1993; vol. 3, 1997; vol. 4, 2003; vol. 5, 2005; vol. 7, 2010; vol. 8, 2009; vol. 19, 2006; vol. 20, 2006; vol. 21, 2006; vol. 22, 2000; vol. 23, 2002; vol. 24, 2007; vol. 25, 2003; vol. 26, 2002; vol. 27, 2007; vol 28, 2014; vol. 9, 2014; vol. 6, 2015; vol. 12, 2016; vol. 17, 2019. 


ITIS. 2020. Integrated Taxonomic Information System (ITIS) online database. 


Kansas Forest Service. 2020. Invasive Species. Kansas Forest Service, Manhattan, KS. 


Kartesz, J.T., The Biota of North America Program (BONAP). 2015. North American Plant Atlas. Chapel Hill, NC. 


Michigan State University Department of Entomology Laboratory for Applied Spatial Ecology and Technical Services. 2020. Midwest Invasive Species Information Network. Michigan State University, East Lansing, MI. 


Miller, J.H., E.B. Chambliss, and N.J. Loewenstein. 2015. A Field Guide for the Identification of Invasive Plants in Southern Forests. US Department of Agriculture Southern Research Station, Asheville, NC. 


Missouri Department of Conservation. 2020. Invasive Plants. 


National Invasive Species Information Center and National Invasive Species Council. 2006. National Invasive Species Information Center. 


Nesom, G.L. 2009. Assessment of Invasiveness and Ecological Impact in Non-native Plants of Texas. Journal of the Botanical Research Institute of Texas. 3(2); 971-991. 


New Mexico Department of Agriculture. 2020. Noxious Weed Information. Las Cruces, NM. 


Oklahoma Biological Survey. 2004-Present. Oklahoma Vascular Plants Database. Oklahoma Biological Survey, University of Oklahoma, Norman, OK, USA. 


Oklahoma Native Plant Society, Oklahoma Biological Survey, OSU Natural Resource Ecology and Management, Oklahoma Chapter of The Nature Conservancy. 2009. Oklahoma Non-Native Invasive Plant Species.  


Texas Invasive Plant and Pest Council. 2020. Invasives Database. Lady Bird Johnson Wildflower Center, University of Texas, Austin, TX. 


University of Arkansas Division of Agriculture, Research and Extension. 2020. Invasive Plants in Arkansas. Little Rock, Arkansas. 


USDA, NRCS. 2020. USDA PLANTS Database. The PLANTS Database National Plant Data Team, Greensboro, NC USA. 


USDA, NRCS. 2022. Technnical Resources. US Department of Agriculture, Washington DC. 

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