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Status of Invasive Plants in North Dakota

Total number of exotic species reported: 241

Total number of records in EDDMapS: 15359


Invasive Plants by Category

  • Aquatic - 7 species, 368 records
  • Forbs/Herbs - 159 species, 5587 records
  • Grass or Grasslike - 43 species, 1157 records
  • Hardwood Trees - 11 species, 232 records
  • Shrub or Subshrub - 9 species, 5499 records
  • Vines - 10 species, 523 records

Top Ten Abundant Invasive Plants (by number of reports)

  1. tamarisk - 4729 reports
  2. leafy spurge - 572 reports
  3. Canada thistle - 535 reports
  4. absinth wormwood - 512 reports
  5. field bindweed - 307 reports
  6. musk thistle - 198 reports
  7. spotted knapweed - 175 reports
  8. purple loosestrife - 170 reports
  9. Russian knapweed - 138 reports
  10. wild buckwheat - 129 reports

Top Ten Widespread Invasive Plants (by number of positive counties)

  1. Canada thistle - 53/53 (100%)
  2. musk thistle - 53/53 (100%)
  3. leafy spurge - 53/53 (100%)
  4. absinth wormwood - 53/53 (100%)
  5. perennial sowthistle - 51/53 (96%)
  6. field bindweed - 50/53 (94%)
  7. common yarrow - 49/53 (92%)
  8. quackgrass - 49/53 (92%)
  9. flixweed - 47/53 (89%)
  10. green foxtail - 47/53 (89%)

Counties with the most invasive species reported

  1. Cass County - 226 species
  2. Barnes County - 177 species
  3. Richland County - 171 species
  4. Stutsman County - 153 species
  5. Pembina County - 150 species
  6. Ransom County - 147 species
  7. Grand Forks County - 143 species
  8. Billings County - 139 species
  9. Williams County - 133 species
  10. Stark County - 132 species

Counties with the least invasive species reported

  1. Adams County - 26 species
  2. Towner County - 41 species
  3. Foster County - 44 species
  4. Sioux County - 48 species
  5. Hettinger County - 49 species
  6. Renville County - 49 species
  7. Wells County - 53 species
  8. Traill County - 60 species
  9. Pierce County - 64 species
  10. Eddy County - 64 species

Report created on July 4, 2015 at 11:17 AM by the UGA Center for Invasive Species and Ecosystem Health using EDDMapS Technology and Data.